update docs for gh pages [ci skip]

docs/index.md

@@ -1297,3 +1297,4 @@ $ REPORTER=nyan npm test
 ## More Information
 
 In addition to chatting with us on [Gitter](https://gitter.im/mochajs/mocha), for additional information such as using spies, mocking, and shared behaviours be sure to check out the [Mocha Wiki](https://github.com/mochajs/mocha/wiki) on GitHub. For discussions join the [Google Group](http://groups.google.com/group/mochajs). For a running example of Mocha, view [example/tests.html](example/tests.html). For the JavaScript API, view the [source](https://github.com/mochajs/mocha/blob/master/lib/mocha.js#L51).
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