Merge pull request timoxley#79 from gitter-badger/gitter-badge

Add a Gitter chat badge to Readme.md

Author: timoxley

Readme.md

@@ -1,4 +1,6 @@
 # Functional Javascript Workshop
+
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/timoxley/functional-javascript-workshop?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 <img alt="Functional Javascript Workshop" src="https://f.cloud.github.com/assets/43438/1368315/63919ad8-3997-11e3-909e-8193f5a94b59.png" align="right">
 
 ### Teaching fundamental functional programming features of Javascript.