Merge pull request #1063 from a0viedo/patch-1

link build badge to master branch

Author: Salakar

README.md

@@ -1,7 +1,7 @@
 redis - a node.js redis client
 ===========================
 
-[![Build Status](https://travis-ci.org/NodeRedis/node_redis.png)](https://travis-ci.org/NodeRedis/node_redis)
+[![Build Status](https://travis-ci.org/NodeRedis/node_redis.svg?branch=master)](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://img.shields.io/appveyor/ci/BridgeAR/node-redis/master.svg?label=Windows%20Tests)](https://ci.appveyor.com/project/BridgeAR/node-redis/branch/master)
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