Update readme

Author: jmdobry

Diff for: README.md

@@ -45,6 +45,8 @@ var User = store.defineResource({
 [CHANGELOG.md](https://github.com/js-data/js-data-mongodb/blob/master/CHANGELOG.md)
 
 ### Community
+- [Gitter Channel](https://gitter.im/js-data/js-data) - Better than IRC!
+- [Announcements](http://www.js-data.io/blog)
 - [Mailing List](https://groups.io/org/groupsio/jsdata) - Ask your questions!
 - [Issues](https://github.com/js-data/js-data-mongodb/issues) - Found a bug? Feature request? Submit an issue!
 - [GitHub](https://github.com/js-data/js-data-mongodb) - View the source code for js-data.