Update CONTRIBUTING.md

Author: uglide

CONTRIBUTING.md

@@ -2,11 +2,11 @@
 ## IMPORTANT: HOW TO ADD ISSUES
 
 * Github issues **SHOULD ONLY BE USED to report bugs**, and for DETAILED feature
-  requests. Everything else belongs to the [RDM Public Skype](http://tinyurl.com/o44bk5g) 
+  requests. Everything else belongs to the [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/uglide/RedisDesktopManager)
 
   **PLEASE DO NOT POST GENERAL QUESTIONS** that are not about bugs or suspected
   bugs in the Github issues system. We'll be very happy to help you and provide
-  all the support in the [RDM Public Skype](http://tinyurl.com/o44bk5g) 
+  all the support in the [![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/uglide/RedisDesktopManager) 
 
 ### Bug report template: