add build logo

wh8766 · wh8766 · commit 2067b5ea2247 · 2017-12-29T23:05:12.000+08:00
diff --git a/README.md b/README.md
@@ -1,4 +1,7 @@
 # postcss-px-resize
-A postcss plugin to resize px in src.
+
+[![Build Status](https://travis-ci.org/wh8766/postcss-px-resize.svg?branch=master)](https://travis-ci.org/wh8766/postcss-px-resize)
+
+> A postcss plugin to resize px in src.
 
 ## Use
