Add PureSkill.gg to list of projects (#290) [skip ci]

Author: billfreeman44

README.md

@@ -210,6 +210,7 @@ There is one caveat however: Beta features - which are marked as such via commen
 - [csgoverview](https://github.com/Linus4/csgoverview) - A 2D demo replay tool for CS:GO
 - [csgo-coach-bug-detector](https://github.com/softarn/csgo-coach-bug-detector) - Detects the abuse of an exploit used by some team coaches in professional matches
 - [megaclan3000](https://github.com/megaclan3000/megaclan3000) - A CS:GO stats page for clans with recent matches and player statistics
+- [PureSkill.gg](https://pureskill.gg/) - An automated coach to help you get better at CS:GO.
 
 If your project is using this library feel free to submit a PR or send a message in [Gitter](https://gitter.im/csgodemos/demoinfo-lib) to be included in the list.