Merge pull request daimajia#59 from gitter-badger/gitter-badge

Add a Gitter chat badge to README.md

Author: daimajia

README.md

@@ -1,4 +1,6 @@
 # Android Image Slider [![Build Status](https://travis-ci.org/daimajia/AndroidImageSlider.svg)](https://travis-ci.org/daimajia/AndroidImageSlider)
+
+[![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/daimajia/AndroidImageSlider?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 
 This is an amazing image slider for the Android platform. I decided to open source this because there is really not an attractive, convenient slider widget in Android.