From bc0ba17583ab56d27518ed5a759985d1fe19a0c2 Mon Sep 17 00:00:00 2001
From: trivernis <trivernis@gmail.com>
Date: Sat, 15 Feb 2020 13:54:14 +0100
Subject: [PATCH] Add usage to README

---
 .gitignore |  3 ++-
 README.md  | 14 ++++++++++++--
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/.gitignore b/.gitignore
index 269eabf..edf1b0c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,4 +2,5 @@
 *.jpg
 *.txt
 *.pdf
-.idea
\ No newline at end of file
+.idea
+cryptpng
\ No newline at end of file
diff --git a/README.md b/README.md
index 4bab7c9..25207d1 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,13 @@
-# cryptpng
+# Cryptpng
 
-A proof of concept implementation of storing encrypted data inside of png metadata chunks.
\ No newline at end of file
+A proof of concept implementation of storing encrypted data inside of png metadata chunks.
+
+## Usage
+
+```shell script
+# encrypt
+cryptpng --image <name of the image> --in <input file> --out <output file>
+
+# decrypt
+cryptpng --decrypt --image <crypt image> --out <decrypted output file>
+```
\ No newline at end of file