Add irc channel

Author: shana

README.md

@@ -5,7 +5,7 @@ Most of the extension UI lives in the Team Explorer pane, which is available fro
 
 Official builds of this extension are available at [the official website](https://visualstudio.github.com).
 
-[![Join the chat at https://gitter.im/github/VisualStudio](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/github/VisualStudio?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+[![Join the chat at freenode:github-vs](https://img.shields.io/badge/irc-freenode:%20%23github--vs-blue.svg)](http://webchat.freenode.net/?channels=%23github-vs) [![Join the chat at https://gitter.im/github/VisualStudio](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/github/VisualStudio?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 ## Installing beta versions