Add a reference to Candy in the README (#462)

Author: lanthora

README.md

@@ -107,6 +107,7 @@ If your company or project is using this library, feel free to open an issue or
 - [Teleport](http://teleportconnect.com/), Teleport is your own personal remote robot avatar
 - [Abaddon](https://github.com/uowuo/abaddon), An alternative Discord client made with C++/gtkmm 
 - [NovaCoin](https://github.com/novacoin-project/novacoin), a hybrid scrypt PoW + PoS based cryptocurrency.
+- [Candy](https://github.com/lanthora/candy), A WebSocket and TUN based VPN for Linux 
 
 ## Alternative libraries