Add gitter batch

Author: Ruben Bridgewater

README.md

@@ -4,6 +4,7 @@ redis - a node.js redis client
 [![Build Status](https://travis-ci.org/NodeRedis/node_redis.png)](https://travis-ci.org/NodeRedis/node_redis)
 [![Coverage Status](https://coveralls.io/repos/NodeRedis/node_redis/badge.svg?branch=)](https://coveralls.io/r/NodeRedis/node_redis?branch=)
 [![Windows Tests](https://ci.appveyor.com/api/projects/status/koc3xraik0xq3b56/branch/master?svg=true)](https://ci.appveyor.com/project/BridgeAR/node-redis/branch/master)
+[![Gitter](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/NodeRedis/node_redis?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge)
 
 This is a complete and feature rich Redis client for node.js. It supports all Redis commands and focuses on performance.