Update README.md

Igor Chepurnoy · web-flow · commit a4a025cd53e8 · 2017-04-16T15:53:28.000+03:00
diff --git a/README.md b/README.md
@@ -2,6 +2,8 @@ Markdown Widget for Yii 2
 =========
 Widget based on [simplemde-markdown-editor](https://github.com/NextStepWebs/simplemde-markdown-editor) 
 
+[![Build Status](https://travis-ci.org/yii2mod/yii2-markdown.svg?branch=master)](https://travis-ci.org/yii2mod/yii2-markdown)
+
 Installation 
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