Add travis badge to readme [ci skip]

derrickreimer · derrickreimer · commit 9ecd5c21f3bc · 2015-07-20T19:06:38.000-07:00
diff --git a/README.md b/README.md
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 A Ruby toolkit for the [Drip](https://www.getdrip.com/) API.
 
+[![Build Status](https://travis-ci.org/DripEmail/drip-ruby.svg?branch=master)](https://travis-ci.org/DripEmail/drip-ruby)
+
 ## Installation
 
 Add this line to your application's Gemfile:
