README.md in hybridgroup-firmata-0.4.1 vs README.md in hybridgroup-firmata-0.4.2

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 A Ruby implementation of the [Firmata protocol](http://firmata.org/wiki/V2.2ProtocolDetails).
 
 This library is inspired by the awesome [firmata](http://jgautier.github.com/firmata/) by [jgautier](https://github.com/jgautier).
 
+[![Build Status](https://travis-ci.org/hybridgroup/firmata.png?branch=master)](https://travis-ci.org/hybridgroup/firmata)
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 ## Installation
 
 Add this line to your application's Gemfile:
 
     gem 'firmata'