Add README and Crates.io metadata

Signed-off-by: trivernis <trivernis@protonmail.com>

Cargo.toml

@@ -3,6 +3,10 @@ name = "hydrus-api"
 version = "0.1.0"
 authors = ["trivernis <trivernis@protonmail.com>"]
 edition = "2018"
+license = "Apache-2.0"
+readme = "README.md"
+description = "A rust wrapper for the hydrus client api"
+repository = "https://github.com/trivernis/hydrus-api-rs"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

README.md

@@ -0,0 +1,36 @@
+# Hydrus Rust API
+
+This is a WIP Rust Wrapper for the Hydrus Client API. 
+The official API documentation can be found [here](https://hydrusnetwork.github.io/hydrus/help/client_api.html).
+
+## Example
+
+```rust
+
+use hydrus_api_rs::Client;
+
+#[tokio::main]
+async fn main() {
+    Client::new(
+        env::var("HYDRUS_URL").unwrap(),
+        env::var("HYDRUS_ACCESS_KEY").unwrap(),
+    ).unwrap();
+    // let's first import a file
+    let hash = client.add_file("/path/to/my/file").await.unwrap().hash;
+    
+    // and now let's add tags to it
+    let request = AddTagsRequestBuilder::default()
+        .add_hash(hash)
+        // for each tag the service has to be specified
+        .add_tags("my tags", vec!["beach".into(), "summer".into()])
+        // with tag actions tags can also be removed. It's especially useful for the PTR
+        .add_tag_with_action("my tags", "rain", TagAction::DeleteFromLocalService)
+        .build();
+    
+    client.add_tags(request).await.unwrap();
+}
+```
+
+## License
+
+Apache-2.0

src/lib.rs

@@ -5,3 +5,5 @@ pub mod client;
 mod error;
 pub mod paths;
 pub(crate) mod utils;
+
+pub use client::Client;

tests/test_adding_tags.rs

@@ -1,5 +1,4 @@
 use hydrus_api::paths::adding_tags::{AddTagsRequestBuilder, TagAction};
-
 mod common;
 
 #[tokio::test]