Travis-CI build status.

readme.md

@@ -9,6 +9,8 @@ If you are looking for a production-ready PHP framework, please use
 Yii 2.0 is still under heavy development. We may make significant changes
 without prior notices. **Yii 2.0 is not ready for production use yet.**
 
+[![Build Status](https://secure.travis-ci.org/yiisoft/yii2.png)](http://travis-ci.org/yiisoft/yii2)
+
 
 DIRECTORY STRUCTURE
 -------------------