README: Add build status badge

mathiasbynens · mathiasbynens · commit b3e7541b9b64 · 2013-09-20T13:40:15.000+02:00
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-# ES6 `String.prototype.codePointAt` polyfill
+# ES6 `String.prototype.codePointAt` polyfill [![Build status](https://travis-ci.org/mathiasbynens/String.prototype.codePointAt.png?branch=master)](https://travis-ci.org/mathiasbynens/String.prototype.codePointAt)
 
 A robust & optimized polyfill for [the `String.prototype.codePointAt` method in ECMAScript 6](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-21.1.3.3).
 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		-# ES6 `String.prototype.codePointAt` polyfill
	`1`	+# ES6 `String.prototype.codePointAt` polyfill [![Build status](https://travis-ci.org/mathiasbynens/String.prototype.codePointAt.png?branch=master)](https://travis-ci.org/mathiasbynens/String.prototype.codePointAt)
`2`	`2`
`3`	`3`	A robust & optimized polyfill for [the `String.prototype.codePointAt` method in ECMAScript 6](http://people.mozilla.org/~jorendorff/es6-draft.html#sec-21.1.3.3).
`4`	`4`