add Travis Badge

mattn · mattn · commit d39025c30e8f · 2017-05-25T23:59:42.000+09:00
diff --git a/README.mkd b/README.mkd
@@ -1,3 +1,5 @@
 # Vim Script Parsers
 
+[![Build Status](https://travis-ci.org/vim-jp/vim-vimlparser.svg?branch=master)](https://travis-ci.org/vim-jp/vim-vimlparser)
+
 TODO: write something.
