README.md in ordu-0.0.3 vs README.md in ordu-0.0.4

@@ -1,9 +1,11 @@
 # Ordú
 
 Another command-line interface library for Ruby. This one is based entirely on
 the venerable and built-in `OptionParser` class.
 
+[![Build Status](https://travis-ci.org/bjjb/ordu.svg?branch=master)](https://travis-ci.org/bjjb/ordu)
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby