Update readme

Author: fsvreddit

README.md

@@ -1,3 +1,13 @@
-This app checks the modqueue every five minutes. If there are any posts or comments in the queue for shadowbanned, suspended or deleted users, the post or comment will be removed.
+This app checks the modqueue every five minutes. If there are any posts or comments in the queue for shadowbanned, suspended or deleted users, the post or comment will be removed if configured to do so.
 
 The app can be configured to remove posts or comments for deleted users or shadowbanned/suspended users - both options can be controlled independently.
+
+## Change History
+
+### v1.0.0
+
+* Initial Release
+
+## About this app
+
+Modqueue Pruner is open source. You can find the source [here](https://github.com/fsvreddit/queue-pruner).