docs: updated build badge

README.md

@@ -5,7 +5,7 @@
 [![npm](https://img.shields.io/badge/npm-wiki.js-blue.svg?style=flat-square)](https://www.npmjs.com/package/wiki.js)
 [![Downloads](https://img.shields.io/github/downloads/Requarks/wiki/total.svg?style=flat-square)](https://www.npmjs.com/package/wiki.js)
 [![Twitter Follow](https://img.shields.io/badge/follow-%40requarks-blue.svg?style=flat-square)](https://twitter.com/requarks)  
-[![Build Status](https://img.shields.io/travis/Requarks/wiki/master.svg?style=flat-square)](https://travis-ci.org/Requarks/wiki)
+[![Build Status](https://app.wercker.com/status/fc8e75793b3cf12852314d6bfd83d148/s/master?style=flat-square)](https://app.wercker.com/project/byKey/fc8e75793b3cf12852314d6bfd83d148)
 [![Codacy Badge](https://img.shields.io/codacy/grade/1d0217a3153c4595bdedb322263e55c8/master.svg?style=flat-square)](https://www.codacy.com/app/Requarks/wiki)
 [![Dependency Status](https://img.shields.io/gemnasium/Requarks/wiki.svg?style=flat-square)](https://gemnasium.com/github.com/Requarks/wiki)
 [![Standard - JavaScript Style Guide](https://img.shields.io/badge/code%20style-standard-brightgreen.svg?style=flat-square)](http://standardjs.com/)