Merge pull request #1 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.md

Author: MaxMikheyenko

README.md

@@ -1,5 +1,7 @@
 # JW Player SDK for Android Open Source Demo
 
+[![Join the chat at https://gitter.im/jwplayer/jwplayer-sdk-android-demo](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/jwplayer/jwplayer-sdk-android-demo?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
+
 This application contains an example implementation of the JW Player SDK for Android.
 
 #### Usage instructions: