Small cleanup to tips intro

tips/01-introduction.md

@@ -8,8 +8,6 @@ next: inline-styles.html
 
 The React tips section provides bite-sized information that can answer lots of questions you might have and warn you against common pitfalls.
 
-### Contributing
+## Contributing
 
-Submit a pull request to the [React repo](https://github.com/facebook/react) following the cookbook entries' style. If you have a recipe that needs review prior to submitting a PR you can find help in the [#reactjs IRC on freenode](irc://chat.freenode.net/reactjs) or the [reactjs Google group](http://groups.google.com/group/reactjs). Also, check the [Tips Wiki][1] for entries in-progress and general guidelines on writing React tips.
+Submit a pull request to the [React repository](https://github.com/facebook/react) following the [current tips](https://github.com/facebook/react/tree/master/docs) entries' style. If you have a recipe that needs review prior to submitting a PR you can find help in the [#reactjs channel on freenode](irc://chat.freenode.net/reactjs) or the [reactjs Google group](http://groups.google.com/group/reactjs). Also, check the [Tips Wiki](https://github.com/facebook/react/wiki/Tips-(Previously-Cookbook)) for entries in-progress and general guidelines on writing React tips.
-
-[1]: https://github.com/facebook/react/wiki/Tips-(Previously-Cookbook)