diff --git a/Cargo.lock b/Cargo.lock
index 58c1743..8f8c730 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2,9 +2,9 @@
 # It is not intended for manual editing.
 [[package]]
 name = "addr2line"
-version = "0.14.0"
+version = "0.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c0929d69e78dd9bf5408269919fcbcaeb2e35e5d43e5815517cdc6a8e11a423"
+checksum = "a55f82cfe485775d02112886f4169bde0c5894d75e79ead7eafe7e40a25e45f7"
 dependencies = [
  "gimli",
 ]
@@ -150,7 +150,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f30d3a39baa26f9651f17b375061f3233dde33424a8b72b0dbe93a68a0bc896d"
 dependencies = [
  "byteorder",
- "serde 1.0.118",
+ "serde 1.0.119",
 ]
 
 [[package]]
@@ -193,15 +193,15 @@ checksum = "72feb31ffc86498dacdbd0fcebb56138e7177a8cc5cea4516031d15ae85a742e"
 
 [[package]]
 name = "bytemuck"
-version = "1.4.1"
+version = "1.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41aa2ec95ca3b5c54cf73c91acf06d24f4495d5f1b1c12506ae3483d646177ac"
+checksum = "5a4bad0c5981acc24bc09e532f35160f952e35422603f0563cd7a73c2c2e65a0"
 
 [[package]]
 name = "byteorder"
-version = "1.3.4"
+version = "1.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "08c48aae112d48ed9f069b33538ea9e3e90aa263cfa3d1c24309612b1f7472de"
+checksum = "ae44d1a3d5a19df61dd0c8beb138458ac2a53a7ac09eba97d55592540004306b"
 
 [[package]]
 name = "bytes"
@@ -209,6 +209,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0e4cec68f03f32e44924783795810fa50a7035d8c8ebe78580ad7e6c703fba38"
 
+[[package]]
+name = "bytes"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
+
 [[package]]
 name = "cc"
 version = "1.0.66"
@@ -307,7 +313,7 @@ dependencies = [
  "lazy_static",
  "nom",
  "rust-ini",
- "serde 1.0.118",
+ "serde 1.0.119",
  "serde-hjson",
  "serde_json",
  "toml",
@@ -316,9 +322,9 @@ dependencies = [
 
 [[package]]
 name = "console"
-version = "0.13.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a50aab2529019abfabfa93f1e6c41ef392f91fbf179b347a7e96abb524884a08"
+checksum = "7cc80946b3480f421c2f17ed1cb841753a371c7c5104f51d507e13f532c856aa"
 dependencies = [
  "encode_unicode",
  "lazy_static",
@@ -327,24 +333,13 @@ dependencies = [
  "terminal_size",
  "unicode-width",
  "winapi 0.3.9",
- "winapi-util",
-]
-
-[[package]]
-name = "console_error_panic_hook"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b8d976903543e0c48546a91908f21588a680a8c8f984df9a5d69feccb2b2a211"
-dependencies = [
- "cfg-if 0.1.10",
- "wasm-bindgen",
 ]
 
 [[package]]
 name = "const_fn"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd51eab21ab4fd6a3bf889e2d0958c0a6e3a61ad04260325e919e652a2a62826"
+checksum = "28b9d6de7f49e22cf97ad17fc4036ece69300032f45f78f30b4a4482cdc3f4a6"
 
 [[package]]
 name = "constant_time_eq"
@@ -569,7 +564,7 @@ checksum = "aafcde04e90a5226a6443b7aabdb016ba2f8307c847d524724bd9b346dd1a2d3"
 dependencies = [
  "atty",
  "humantime",
- "log 0.4.11",
+ "log 0.4.13",
  "regex",
  "termcolor",
 ]
@@ -582,7 +577,7 @@ checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
 dependencies = [
  "atty",
  "humantime",
- "log 0.4.11",
+ "log 0.4.13",
  "regex",
  "termcolor",
 ]
@@ -604,8 +599,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "aa4da3c766cd7a0db8242e326e9e4e081edd567072893ed320008189715366a4"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
  "synstructure",
 ]
 
@@ -617,7 +612,7 @@ checksum = "0c122a393ea57648015bf06fbd3d372378992e86b9ff5a7a497b076a28c79efe"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.57",
  "winapi 0.3.9",
 ]
 
@@ -707,51 +702,51 @@ checksum = "3dcaa9ae7725d12cdb85b3ad99a434db70b468c09ded17e012d86b5c1010f7a7"
 
 [[package]]
 name = "futures-channel"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b7109687aa4e177ef6fe84553af6280ef2778bdb7783ba44c9dc3399110fe64"
+checksum = "f2d31b7ec7efab6eefc7c57233bb10b847986139d88cc2f5a02a1ae6871a1846"
 dependencies = [
  "futures-core",
 ]
 
 [[package]]
 name = "futures-core"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "847ce131b72ffb13b6109a221da9ad97a64cbe48feb1028356b836b47b8f1748"
+checksum = "79e5145dde8da7d1b3892dad07a9c98fc04bc39892b1ecc9692cf53e2b780a65"
 
 [[package]]
 name = "futures-io"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "611834ce18aaa1bd13c4b374f5d653e1027cf99b6b502584ff8c9a64413b30bb"
+checksum = "28be053525281ad8259d47e4de5de657b25e7bac113458555bb4b70bc6870500"
 
 [[package]]
 name = "futures-sink"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f878195a49cee50e006b02b93cf7e0a95a38ac7b776b4c4d9cc1207cd20fcb3d"
+checksum = "caf5c69029bda2e743fddd0582d1083951d65cc9539aebf8812f36c3491342d6"
 
 [[package]]
 name = "futures-task"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7c554eb5bf48b2426c4771ab68c6b14468b6e76cc90996f528c3338d761a4d0d"
+checksum = "13de07eb8ea81ae445aca7b69f5f7bf15d7bf4912d8ca37d6645c77ae8a58d86"
 dependencies = [
  "once_cell",
 ]
 
 [[package]]
 name = "futures-util"
-version = "0.3.8"
+version = "0.3.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d304cff4a7b99cfb7986f7d43fbe93d175e72e704a8860787cc95e9ffd85cbd2"
+checksum = "632a8cd0f2a4b3fdea1657f08bde063848c3bd00f9bbf6e256b8be78802e624b"
 dependencies = [
  "futures-core",
  "futures-io",
  "futures-task",
  "memchr",
- "pin-project 1.0.2",
+ "pin-project-lite 0.2.4",
  "pin-utils",
  "slab",
 ]
@@ -768,15 +763,26 @@ dependencies = [
 
 [[package]]
 name = "getrandom"
-version = "0.1.15"
+version = "0.1.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc587bc0ec293155d5bfa6b9891ec18a1e330c234f896ea47fbada4cadbe47e6"
+checksum = "8fc3cb4d91f53b50155bdcfd23f6a4c39ae1969c2ae85982b135750cccaf5fce"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "libc",
  "wasi 0.9.0+wasi-snapshot-preview1",
 ]
 
+[[package]]
+name = "getrandom"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4060f4657be78b8e766215b02b18a2e862d83745545de804638e2b545e81aee6"
+dependencies = [
+ "cfg-if 1.0.0",
+ "libc",
+ "wasi 0.10.0+wasi-snapshot-preview1",
+]
+
 [[package]]
 name = "gh-emoji"
 version = "1.0.3"
@@ -809,7 +815,7 @@ version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5e4728fd124914ad25e99e3d15a9361a879f6620f63cb56bbb08f95abb97a535"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "fnv",
  "futures-core",
  "futures-sink",
@@ -825,9 +831,12 @@ dependencies = [
 
 [[package]]
 name = "hashbrown"
-version = "0.9.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
+checksum = "e91b62f79061a0bc2e046024cb7ba44b08419ed238ecbd9adbd787434b9e8c25"
+dependencies = [
+ "autocfg 1.0.1",
+]
 
 [[package]]
 name = "headless_chrome"
@@ -839,10 +848,10 @@ dependencies = [
  "derive_builder",
  "env_logger 0.6.2",
  "failure",
- "log 0.4.11",
+ "log 0.4.13",
  "rand 0.7.3",
  "regex",
- "serde 1.0.118",
+ "serde 1.0.119",
  "serde_derive",
  "serde_json",
  "tempfile",
@@ -853,18 +862,18 @@ dependencies = [
 
 [[package]]
 name = "heck"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
+checksum = "87cbf45460356b7deeb5e3415b5563308c0a9b057c85e12b06ad551f98d0a6ac"
 dependencies = [
  "unicode-segmentation",
 ]
 
 [[package]]
 name = "hermit-abi"
-version = "0.1.17"
+version = "0.1.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aca5565f760fb5b220e499d72710ed156fdb74e631659e99377d9ebfbd13ae8"
+checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
 dependencies = [
  "libc",
 ]
@@ -877,11 +886,11 @@ checksum = "e9025058dae765dee5070ec375f591e2ba14638c63feff74f13805a72e523163"
 
 [[package]]
 name = "http"
-version = "0.2.1"
+version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
+checksum = "7245cd7449cc792608c3c8a9eaf69bd4eabbabf802713748fd739c98b82f0747"
 dependencies = [
- "bytes",
+ "bytes 1.0.1",
  "fnv",
  "itoa",
 ]
@@ -892,7 +901,7 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "http",
 ]
 
@@ -942,7 +951,7 @@ version = "0.13.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f6ad767baac13b44d4529fcf58ba2cd0995e36e7b435bc5b039de6f47e880dbf"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "futures-channel",
  "futures-core",
  "futures-util",
@@ -952,7 +961,7 @@ dependencies = [
  "httparse",
  "httpdate",
  "itoa",
- "pin-project 1.0.2",
+ "pin-project 1.0.4",
  "socket2",
  "tokio",
  "tower-service",
@@ -966,7 +975,7 @@ version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d979acc56dcb5b8dddba3917601745e877576475aa046df3226eabdecef78eed"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "hyper 0.13.9",
  "native-tls",
  "tokio",
@@ -1022,9 +1031,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.6.0"
+version = "1.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "55e2e4c765aa53a0424761bf9f41aa7a6ac1efa87238f59560640e27fca028f2"
+checksum = "4e47a3566dd4fd4eec714ae6ceabdee0caec795be835c223d92c2d40f1e8cf1c"
 dependencies = [
  "autocfg 1.0.1",
  "hashbrown",
@@ -1055,9 +1064,9 @@ dependencies = [
 
 [[package]]
 name = "inotify-sys"
-version = "0.1.4"
+version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4563555856585ab3180a5bf0b2f9f8d301a728462afffc8195b3f5394229c55"
+checksum = "e05c02b5e89bff3b946cedeca278abc628fe811e604f027c45a8aa3cf793d0eb"
 dependencies = [
  "libc",
 ]
@@ -1088,9 +1097,9 @@ checksum = "47be2f14c678be2fdcab04ab1171db51b2762ce6f0a8ee87c8dd4a04ed216135"
 
 [[package]]
 name = "itoa"
-version = "0.4.6"
+version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dc6f3ad7b9d11a0c00842ff8de1b60ee58661048eb8049ed33c73594f359d7e6"
+checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
 [[package]]
 name = "jpeg-decoder"
@@ -1154,9 +1163,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.81"
+version = "0.2.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1482821306169ec4d07f6aca392a4681f66c75c9918aa49641a2595db64053cb"
+checksum = "89203f3fba0a3795506acaad8ebce3c80c0af93f994d5a1d7a0b1eeb23271929"
 
 [[package]]
 name = "line-wrap"
@@ -1179,9 +1188,9 @@ dependencies = [
 
 [[package]]
 name = "linked-hash-map"
-version = "0.5.3"
+version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8dd5a6d5999d9907cda8ed67bbd137d3af8085216c2ac62de5be860bd41f304a"
+checksum = "7fb9b38af92608140b86b693604b9ffcc5824240a484d1ecd4795bacb2fe88f3"
 
 [[package]]
 name = "lock_api"
@@ -1198,14 +1207,14 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
 dependencies = [
- "log 0.4.11",
+ "log 0.4.13",
 ]
 
 [[package]]
 name = "log"
-version = "0.4.11"
+version = "0.4.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4fabed175da42fed1fa0746b0ea71f412aa9d35e76e95e59b192c64b9dc2bf8b"
+checksum = "fcf3805d4480bb5b86070dcfeb9e2cb2ebc148adb753c5cca5f884d1d65a42b2"
 dependencies = [
  "cfg-if 0.1.10",
 ]
@@ -1299,7 +1308,7 @@ dependencies = [
  "iovec",
  "kernel32-sys",
  "libc",
- "log 0.4.11",
+ "log 0.4.13",
  "miow",
  "net2",
  "slab",
@@ -1313,7 +1322,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "52403fe290012ce777c4626790c8951324a2b9e3316b3143779c72b029742f19"
 dependencies = [
  "lazycell",
- "log 0.4.11",
+ "log 0.4.13",
  "mio",
  "slab",
 ]
@@ -1332,13 +1341,13 @@ dependencies = [
 
 [[package]]
 name = "native-tls"
-version = "0.2.6"
+version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6fcc7939b5edc4e4f86b1b4a04bb1498afaaf871b1a6691838ed06fcb48d3a3f"
+checksum = "b8d96b2e1c8da3957d58100b09f102c6d9cfdfced01b7ec5a8974044bb09dbd4"
 dependencies = [
  "lazy_static",
  "libc",
- "log 0.4.11",
+ "log 0.4.13",
  "openssl",
  "openssl-probe",
  "openssl-sys",
@@ -1518,9 +1527,9 @@ checksum = "624a8340c38c1b80fd549087862da4ba43e08858af025b236e509b6649fc13d5"
 
 [[package]]
 name = "openssl"
-version = "0.10.31"
+version = "0.10.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d008f51b1acffa0d3450a68606e6a51c123012edaacb0f4e1426bd978869187"
+checksum = "038d43985d1ddca7a9900630d8cd031b56e4794eecc2e9ea39dd17aa04399a70"
 dependencies = [
  "bitflags",
  "cfg-if 1.0.0",
@@ -1538,9 +1547,9 @@ checksum = "77af24da69f9d9341038eba93a073b1fdaaa1b788221b00a69bce9e762cb32de"
 
 [[package]]
 name = "openssl-sys"
-version = "0.9.59"
+version = "0.9.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "de52d8eabd217311538a39bba130d7dea1f1e118010fee7a033d966845e7d5fe"
+checksum = "921fc71883267538946025deffb622905ecad223c28efbfdef9bb59a0175f3e6"
 dependencies = [
  "autocfg 1.0.1",
  "cc",
@@ -1562,14 +1571,14 @@ dependencies = [
 
 [[package]]
 name = "parking_lot_core"
-version = "0.8.1"
+version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7c6d9b8427445284a09c55be860a15855ab580a417ccad9da88f5a06787ced0"
+checksum = "9ccb628cad4f84851442432c60ad8e1f607e29752d0bf072cbd0baf28aa34272"
 dependencies = [
  "cfg-if 1.0.0",
  "instant",
  "libc",
- "redox_syscall",
+ "redox_syscall 0.1.57",
  "smallvec",
  "winapi 0.3.9",
 ]
@@ -1615,11 +1624,11 @@ dependencies = [
 
 [[package]]
 name = "pin-project"
-version = "1.0.2"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ccc2237c2c489783abd8c4c80e5450fc0e98644555b1364da68cc29aa151ca7"
+checksum = "95b70b68509f17aa2857863b6fa00bf21fc93674c7a8893de2f469f6aa7ca2f2"
 dependencies = [
- "pin-project-internal 1.0.2",
+ "pin-project-internal 1.0.4",
 ]
 
 [[package]]
@@ -1629,19 +1638,19 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "65ad2ae56b6abe3a1ee25f15ee605bacadb9a764edaba9c2bf4103800d4a1895"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.0.2"
+version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f8e8d2bf0b23038a4424865103a4df472855692821aab4e4f5c3312d461d9e5f"
+checksum = "caa25a6393f22ce819b0f50e0be89287292fda8d425be38ee0ca14c4931d9e71"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
 ]
 
 [[package]]
@@ -1652,9 +1661,9 @@ checksum = "c917123afa01924fc84bb20c4c03f004d9c38e5127e3c039bbf7f4b9c76a2f6b"
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.0"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b063f57ec186e6140e2b8b6921e5f1bd89c7356dda5b33acc5401203ca6131c"
+checksum = "439697af366c49a6d0a010c56a0d97685bc140ce0d377b13a2ea2aa42d64a827"
 
 [[package]]
 name = "pin-utils"
@@ -1679,15 +1688,15 @@ dependencies = [
 
 [[package]]
 name = "plist"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b336d94e8e4ce29bf15bba393164629764744c567e8ad306cc1fdd0119967fd"
+checksum = "4dc57ccf442c7414b790e8e7b72fb4d776a66c7680129360946d9aaa6f5311e9"
 dependencies = [
- "base64 0.12.3",
+ "base64 0.13.0",
  "chrono",
  "indexmap",
  "line-wrap",
- "serde 1.0.118",
+ "serde 1.0.119",
  "xml-rs",
 ]
 
@@ -1717,8 +1726,8 @@ checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
 dependencies = [
  "proc-macro-error-attr",
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
  "version_check 0.9.2",
 ]
 
@@ -1729,7 +1738,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
+ "quote 1.0.8",
  "version_check 0.9.2",
 ]
 
@@ -1768,9 +1777,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.7"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aa563d17ecb180e500da1cfd2b028310ac758de548efdd203e18f283af693f37"
+checksum = "991431c3519a3f36861882da93630ce66b52918dcf1b8e2fd66b397fc96f28df"
 dependencies = [
  "proc-macro2 1.0.24",
 ]
@@ -1800,13 +1809,25 @@ version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6a6b1679d49b24bbfe0c803429aa1874472f50d9b363131f0e89fc356b544d03"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.16",
  "libc",
  "rand_chacha 0.2.2",
  "rand_core 0.5.1",
  "rand_hc 0.2.0",
 ]
 
+[[package]]
+name = "rand"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18519b42a40024d661e1714153e9ad0c3de27cd495760ceb09710920f1098b1e"
+dependencies = [
+ "libc",
+ "rand_chacha 0.3.0",
+ "rand_core 0.6.1",
+ "rand_hc 0.3.0",
+]
+
 [[package]]
 name = "rand_chacha"
 version = "0.1.1"
@@ -1827,6 +1848,16 @@ dependencies = [
  "rand_core 0.5.1",
 ]
 
+[[package]]
+name = "rand_chacha"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
+dependencies = [
+ "ppv-lite86",
+ "rand_core 0.6.1",
+]
+
 [[package]]
 name = "rand_core"
 version = "0.3.1"
@@ -1848,7 +1879,16 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "90bde5296fc891b0cef12a6d03ddccc162ce7b2aff54160af9338f8d40df6d19"
 dependencies = [
- "getrandom",
+ "getrandom 0.1.16",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c026d7df8b298d90ccbbc5190bd04d85e159eaf5576caeacf8741da93ccbd2e5"
+dependencies = [
+ "getrandom 0.2.1",
 ]
 
 [[package]]
@@ -1869,6 +1909,15 @@ dependencies = [
  "rand_core 0.5.1",
 ]
 
+[[package]]
+name = "rand_hc"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
+dependencies = [
+ "rand_core 0.6.1",
+]
+
 [[package]]
 name = "rand_isaac"
 version = "0.1.1"
@@ -1962,22 +2011,31 @@ version = "0.1.57"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "41cc0f7e4d5d4544e8861606a285bb08d3e70712ccc7d2b84d7c0ccfaf4b05ce"
 
+[[package]]
+name = "redox_syscall"
+version = "0.2.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05ec8ca9416c5ea37062b502703cd7fcb207736bc294f6e0cf367ac6fc234570"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "redox_users"
 version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "de0737333e7a9502c789a36d7c7fa6092a49895d4faa31ca5df163857ded2e9d"
 dependencies = [
- "getrandom",
- "redox_syscall",
+ "getrandom 0.1.16",
+ "redox_syscall 0.1.57",
  "rust-argon2",
 ]
 
 [[package]]
 name = "regex"
-version = "1.4.2"
+version = "1.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38cf2c13ed4745de91a5eb834e11c00bcc3709e773173b2ce4c56c9fbde04b9c"
+checksum = "d9251239e129e16308e70d853559389de218ac275b515068abc96829d05b948a"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1987,9 +2045,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.6.21"
+version = "0.6.22"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3b181ba2dcf07aaccad5448e8ead58db5b742cf85dfe035e2227f137a539a189"
+checksum = "b5eb417147ba9860a96cfe72a0b93bf88fee1744b5636ec99ab20c1aa9376581"
 
 [[package]]
 name = "remove_dir_all"
@@ -2002,12 +2060,12 @@ dependencies = [
 
 [[package]]
 name = "reqwest"
-version = "0.10.9"
+version = "0.10.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb15d6255c792356a0f578d8a645c677904dc02e862bebe2ecc18e0c01b9a0ce"
+checksum = "0718f81a8e14c4dbb3b34cf23dc6aaf9ab8a0dfec160c534b3dbca1aaa21f47c"
 dependencies = [
  "base64 0.13.0",
- "bytes",
+ "bytes 0.5.6",
  "encoding_rs",
  "futures-core",
  "futures-util",
@@ -2018,20 +2076,19 @@ dependencies = [
  "ipnet",
  "js-sys",
  "lazy_static",
- "log 0.4.11",
+ "log 0.4.13",
  "mime 0.3.16",
  "mime_guess",
  "native-tls",
  "percent-encoding 2.1.0",
- "pin-project-lite 0.2.0",
- "serde 1.0.118",
+ "pin-project-lite 0.2.4",
+ "serde 1.0.119",
  "serde_urlencoded",
  "tokio",
  "tokio-tls",
  "url 2.2.0",
  "wasm-bindgen",
  "wasm-bindgen-futures",
- "wasm-bindgen-test",
  "web-sys",
  "winreg 0.7.0",
 ]
@@ -2113,12 +2170,6 @@ dependencies = [
  "winapi 0.3.9",
 ]
 
-[[package]]
-name = "scoped-tls"
-version = "1.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea6a9290e3c9cf0f18145ef7ffa62d68ee0bf5fcd651017e586dc7fd5da448c2"
-
 [[package]]
 name = "scoped_threadpool"
 version = "0.1.9"
@@ -2162,9 +2213,9 @@ checksum = "9dad3f759919b92c3068c696c15c3d17238234498bbdcc80f2c469606f948ac8"
 
 [[package]]
 name = "serde"
-version = "1.0.118"
+version = "1.0.119"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06c64263859d87aa2eb554587e2d23183398d617427327cf2b3d0ed8c69e4800"
+checksum = "9bdd36f49e35b61d49efd8aa7fc068fd295961fd2286d0b2ee9a4c7a14e99cc3"
 dependencies = [
  "serde_derive",
 ]
@@ -2184,24 +2235,24 @@ dependencies = [
 
 [[package]]
 name = "serde_derive"
-version = "1.0.118"
+version = "1.0.119"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c84d3526699cd55261af4b941e4e725444df67aa4f9e6a3564f18030d12672df"
+checksum = "552954ce79a059ddd5fd68c271592374bd15cab2274970380c000118aeffe1cd"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.60"
+version = "1.0.61"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1500e84d27fe482ed1dc791a56eddc2f230046a040fa908c08bda1d9fb615779"
+checksum = "4fceb2595057b6891a4ee808f70054bd2d12f0e97f1cbb78689b59f676df325a"
 dependencies = [
  "itoa",
  "ryu",
- "serde 1.0.118",
+ "serde 1.0.119",
 ]
 
 [[package]]
@@ -2222,7 +2273,7 @@ dependencies = [
  "form_urlencoded",
  "itoa",
  "ryu",
- "serde 1.0.118",
+ "serde 1.0.119",
 ]
 
 [[package]]
@@ -2258,13 +2309,13 @@ checksum = "c111b5bd5695e56cffe5129854aa230b39c93a305372fdbb2668ca2394eea9f8"
 
 [[package]]
 name = "smallvec"
-version = "1.5.1"
+version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae524f056d7d770e174287294f562e95044c68e88dec909a00d2094805db9d75"
+checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
 
 [[package]]
 name = "snekdown"
-version = "0.32.0"
+version = "0.32.1"
 dependencies = [
  "asciimath-rs",
  "base64 0.12.3",
@@ -2282,7 +2333,7 @@ dependencies = [
  "image",
  "indicatif",
  "lazy_static",
- "log 0.4.11",
+ "log 0.4.13",
  "maplit",
  "mime 0.3.16",
  "mime_guess",
@@ -2294,7 +2345,7 @@ dependencies = [
  "regex",
  "reqwest",
  "rsass",
- "serde 1.0.118",
+ "serde 1.0.119",
  "sha2",
  "structopt",
  "syntect",
@@ -2303,13 +2354,12 @@ dependencies = [
 
 [[package]]
 name = "socket2"
-version = "0.3.17"
+version = "0.3.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c29947abdee2a218277abeca306f25789c938e500ea5a9d4b12a5a504466902"
+checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
 dependencies = [
  "cfg-if 1.0.0",
  "libc",
- "redox_syscall",
  "winapi 0.3.9",
 ]
 
@@ -2351,8 +2401,8 @@ dependencies = [
  "heck",
  "proc-macro-error",
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
 ]
 
 [[package]]
@@ -2368,12 +2418,12 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.54"
+version = "1.0.58"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a2af957a63d6bd42255c359c93d9bfdb97076bd3b820897ce55ffbfbf107f44"
+checksum = "cc60a3d73ea6594cd712d830cc1f0390fd71542d8c8cd24e70cc54cdfd5e05d5"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
+ "quote 1.0.8",
  "unicode-xid 0.2.1",
 ]
 
@@ -2384,8 +2434,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b834f2d66f734cb897113e34aaff2f1ab4719ca946f9a7358dba8f8064148701"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
  "unicode-xid 0.2.1",
 ]
 
@@ -2404,7 +2454,7 @@ dependencies = [
  "onig",
  "plist",
  "regex-syntax",
- "serde 1.0.118",
+ "serde 1.0.119",
  "serde_derive",
  "serde_json",
  "walkdir",
@@ -2413,14 +2463,14 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.1.0"
+version = "3.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a6e24d9338a0a5be79593e2fa15a648add6138caa803e2d5bc782c371732ca9"
+checksum = "dac1c663cfc93810f88aed9b8941d48cabf856a1b111c29a40439018d870eb22"
 dependencies = [
- "cfg-if 0.1.10",
+ "cfg-if 1.0.0",
  "libc",
- "rand 0.7.3",
- "redox_syscall",
+ "rand 0.8.2",
+ "redox_syscall 0.2.4",
  "remove_dir_all",
  "winapi 0.3.9",
 ]
@@ -2455,9 +2505,9 @@ dependencies = [
 
 [[package]]
 name = "thread_local"
-version = "1.0.1"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
+checksum = "bb9bc092d0d51e76b2b19d9d85534ffc9ec2db959a2523cdae0697e2972cd447"
 dependencies = [
  "lazy_static",
 ]
@@ -2505,7 +2555,7 @@ version = "0.2.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "099837d3464c16a808060bb3f02263b412f6fafcb5d01c533d309985fbeebe48"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "fnv",
  "futures-core",
  "iovec",
@@ -2533,21 +2583,21 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "be8242891f2b6cbef26a2d7e8605133c2c554cd35b3e4948ea892d6d68436499"
 dependencies = [
- "bytes",
+ "bytes 0.5.6",
  "futures-core",
  "futures-sink",
- "log 0.4.11",
+ "log 0.4.13",
  "pin-project-lite 0.1.11",
  "tokio",
 ]
 
 [[package]]
 name = "toml"
-version = "0.5.7"
+version = "0.5.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75cf45bb0bef80604d001caaec0d09da99611b3c0fd39d3080468875cdb65645"
+checksum = "a31142970826733df8241ef35dc040ef98c679ab14d7c3e54d827099b3acecaa"
 dependencies = [
- "serde 1.0.118",
+ "serde 1.0.119",
 ]
 
 [[package]]
@@ -2563,8 +2613,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9f47026cdc4080c07e49b37087de021820269d996f581aac150ef9e5583eefe3"
 dependencies = [
  "cfg-if 1.0.0",
- "log 0.4.11",
- "pin-project-lite 0.2.0",
+ "log 0.4.13",
+ "pin-project-lite 0.2.4",
  "tracing-core",
 ]
 
@@ -2735,7 +2785,7 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1ce8a968cb1cd110d136ff8b819a556d6fb6d919363c61534f6860c7eb172ba0"
 dependencies = [
- "log 0.4.11",
+ "log 0.4.13",
  "try-lock",
 ]
 
@@ -2758,7 +2808,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3cd364751395ca0f68cafb17666eee36b63077fb5ecd972bbcd74c90c4bf736e"
 dependencies = [
  "cfg-if 1.0.0",
- "serde 1.0.118",
+ "serde 1.0.119",
  "serde_json",
  "wasm-bindgen-macro",
 ]
@@ -2771,10 +2821,10 @@ checksum = "1114f89ab1f4106e5b55e688b828c0ab0ea593a1ea7c094b141b14cbaaec2d62"
 dependencies = [
  "bumpalo",
  "lazy_static",
- "log 0.4.11",
+ "log 0.4.13",
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
  "wasm-bindgen-shared",
 ]
 
@@ -2796,7 +2846,7 @@ version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a6ac8995ead1f084a8dea1e65f194d0973800c7f571f6edd70adf06ecf77084"
 dependencies = [
- "quote 1.0.7",
+ "quote 1.0.8",
  "wasm-bindgen-macro-support",
 ]
 
@@ -2807,8 +2857,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b5a48c72f299d80557c7c62e37e7225369ecc0c963964059509fbafe917c7549"
 dependencies = [
  "proc-macro2 1.0.24",
- "quote 1.0.7",
- "syn 1.0.54",
+ "quote 1.0.8",
+ "syn 1.0.58",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -2819,30 +2869,6 @@ version = "0.2.69"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7e7811dd7f9398f14cc76efd356f98f03aa30419dea46aa810d71e819fc97158"
 
-[[package]]
-name = "wasm-bindgen-test"
-version = "0.3.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0355fa0c1f9b792a09b6dcb6a8be24d51e71e6d74972f9eb4a44c4c004d24a25"
-dependencies = [
- "console_error_panic_hook",
- "js-sys",
- "scoped-tls",
- "wasm-bindgen",
- "wasm-bindgen-futures",
- "wasm-bindgen-test-macro",
-]
-
-[[package]]
-name = "wasm-bindgen-test-macro"
-version = "0.3.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "27e07b46b98024c2ba2f9e83a10c2ef0515f057f2da299c1762a2017de80438b"
-dependencies = [
- "proc-macro2 1.0.24",
- "quote 1.0.7",
-]
-
 [[package]]
 name = "web-sys"
 version = "0.3.46"
@@ -2964,9 +2990,9 @@ checksum = "b07db065a5cf61a7e4ba64f29e67db906fb1787316516c4e6e5ff0fea1efcd8a"
 
 [[package]]
 name = "yaml-rust"
-version = "0.4.4"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39f0c922f1a334134dc2f7a8b67dc5d25f0735263feec974345ff706bcf20b0d"
+checksum = "56c1936c4cc7a1c9ab21a1ebb602eb942ba868cbd44a99cb7cdc5892335e1c85"
 dependencies = [
- "linked-hash-map 0.5.3",
+ "linked-hash-map 0.5.4",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index c5d6cf6..2f5ef55 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "snekdown"
-version = "0.32.0"
+version = "0.32.1"
 authors = ["trivernis <trivernis@protonmail.com>"]
 edition = "2018"
 license-file = "LICENSE"
diff --git a/README.md b/README.md
index c1bd6db..777144c 100644
--- a/README.md
+++ b/README.md
@@ -162,6 +162,12 @@ Placeholders are always case insensitive.
 Insert the table of contents
 [[TOC]]
 
+Insert the bibliography list
+[[BIB]]
+
+Insert the glossary
+[[GLS]]
+
 Insert the current date
 [[date]]
 
@@ -209,6 +215,17 @@ language = 'en'
 # author of the document
 author = 'author'
 
+# Title of the document
+title = 'title'
+
+# A short description for the document preview
+description = '''
+Description
+'''
+
+# Keywords to find the document
+keywords = ['HTML', 'Snekdown']
+
 
 # features used in the document
 [features]
@@ -412,6 +429,7 @@ The format ~HTML is not considered a programming language by some definitions.
 The first occurence of the glossary entry (`~HTML`) always uses the long form.
 The second will always be the short form. The long form can be enforced by using two
 (`~~HTML`) tildes.
+The glossary list can be inserted with the `[[GLS]]` placeholder.
 
 ## Math
 
diff --git a/src/format/chromium_pdf/result.rs b/src/format/chromium_pdf/result.rs
index bb45ce2..31256de 100644
--- a/src/format/chromium_pdf/result.rs
+++ b/src/format/chromium_pdf/result.rs
@@ -1,5 +1,5 @@
-use serde::export::fmt::{self, Display};
 use std::error::Error;
+use std::fmt::{self, Display};
 use std::io;
 
 pub type PdfRenderingResult<T> = Result<T, PdfRenderingError>;
diff --git a/src/format/html/to_html.rs b/src/format/html/to_html.rs
index 464a590..52f7e0f 100644
--- a/src/format/html/to_html.rs
+++ b/src/format/html/to_html.rs
@@ -105,16 +105,51 @@ impl ToHtml for Document {
         };
 
         if self.is_root {
-            let language = self.config.lock().metadata.language.clone();
+            let metadata = self.config.lock().metadata.clone();
 
             let style = minify(get_css_for_theme(writer.get_theme()).as_str());
             writer.write("<!DOCTYPE html>".to_string())?;
             writer.write("<html lang=\"".to_string())?;
-            writer.write_attribute(language)?;
+            writer.write_attribute(metadata.language)?;
             writer.write("\"><head ".to_string())?;
             writer.write(path)?;
             writer.write("/>".to_string())?;
             writer.write("<meta charset=\"UTF-8\">".to_string())?;
+
+            if let Some(author) = metadata.author {
+                writer.write("<meta name=\"author\" content=\"".to_string())?;
+                writer.write_attribute(author)?;
+                writer.write("\">".to_string())?;
+            }
+
+            if let Some(title) = metadata.title {
+                writer.write("<title>".to_string())?;
+                writer.write_escaped(title.clone())?;
+                writer.write("</title>".to_string())?;
+                writer.write("<meta name=\"title\" content=\"".to_string())?;
+                writer.write_attribute(title)?;
+                writer.write("\">".to_string())?;
+            }
+
+            if let Some(description) = metadata.description {
+                writer.write("<meta name=\"description\" content=\"".to_string())?;
+                writer.write_attribute(description)?;
+                writer.write("\">".to_string())?;
+            }
+
+            if !metadata.keywords.is_empty() {
+                writer.write("<meta name=\"keywords\" content=\"".to_string())?;
+                writer.write_attribute(
+                    metadata
+                        .keywords
+                        .iter()
+                        .fold("".to_string(), |a, b| format!("{}, {}", a, b))
+                        .trim_start_matches(", ")
+                        .to_string(),
+                )?;
+                writer.write("\">".to_string())?;
+            }
+
             writer.write("<style>".to_string())?;
             writer.write(style)?;
             writer.write("</style>".to_string())?;
diff --git a/src/settings/metadata_settings.rs b/src/settings/metadata_settings.rs
index 386abae..a6257a8 100644
--- a/src/settings/metadata_settings.rs
+++ b/src/settings/metadata_settings.rs
@@ -4,6 +4,8 @@ use serde::{Deserialize, Serialize};
 pub struct MetadataSettings {
     pub title: Option<String>,
     pub author: Option<String>,
+    pub description: Option<String>,
+    pub keywords: Vec<String>,
     pub language: String,
 }
 
@@ -12,6 +14,8 @@ impl Default for MetadataSettings {
         Self {
             title: None,
             author: None,
+            description: None,
+            keywords: Vec::new(),
             language: "en".to_string(),
         }
     }