Update README.md

Author: Eric Elliott

README.md

@@ -76,7 +76,6 @@ Some of these links are affiliate links, meaning that if you make a purchase, I
 * [Slate](https://github.com/tripit/slate) Generate beautiful API docs for your apps
 * [Nitrous.IO](https://www.nitrous.io/join/uJcRo6yQDvs?utm_source=nitrous.io&utm_medium=copypaste&utm_campaign=referral) (Supports live collaboration / pair programming)
 * [Slack](http://slack.com) Chat for teams, with GitHub and Google hangouts integration
-  * For hangouts, just type /hangout in any channel
 * [PrettyDiff](http://prettydiff.com/)
 * [Babel Repl](https://babeljs.io/repl) The Babel REPL with compiled output
 * [ES6 Fiddle](http://www.es6fiddle.net/)