README.md in redis-mutex-1.2.3 vs README.md in redis-mutex-1.3.0

@@ -1,7 +1,9 @@
 Redis Mutex
 ===========
 
+[![Build Status](https://secure.travis-ci.org/kenn/redis-mutex.png)](http://travis-ci.org/kenn/redis-mutex)
+
 Distrubuted mutex in Ruby using Redis. Supports both **blocking** and **non-blocking** semantics.
 
 The idea was taken from [the official SETNX doc](http://redis.io/commands/setnx).
 
 Synopsis