only show badge for master branch

ee2b80ea · capotej · c5aecf3d · ee2b80ea
Commit ee2b80ea authored 9 years ago by capotej
--- a/README.md
+++ b/README.md
 ## packagecloud-ruby
  
-![Build Status](https://travis-ci.org/computology/packagecloud-ruby.svg "Build Status")
+![Build Status](https://travis-ci.org/computology/packagecloud-ruby.svg?branch=master "Build Status")
  
  
 Ruby library for communicating with the [packagecloud.io](https://packagecloud.io) API.