Update README

Author: fallaciousreasoning

README.md

@@ -2,8 +2,16 @@
 A Libgen Fiction store plugin for Calibre
 
 ## Installation
-
-Download a release from [here](https://github.com/fallaciousreasoning/CalibreLibgenStore/releases) and follow the instructions to add the plugin to Calibre.
+- Download the latest release from [here](https://github.com/fallaciousreasoning/CalibreLibgenStore/releases)
+- Open Calibre
+- Navigate to Preferences -> Plugins (in the advanced section) -> Load Plugin from File and select the zip file you downloaded.
+- Restart Calibre
+
+## Usage
+- Click the 'Get Books' menu in Calibre
+- Ensure that 'Libgen Fiction' is selected in the search providers menu
+![image](https://cloud.githubusercontent.com/assets/7678024/26022030/fefe8b24-37dc-11e7-8373-16c6069fa538.png)
+- Search!
 
 ## Testing & development