Ambari HowToContribute wiki page

[Harp, Michael]

Most of the top-level projects have something along the lines of how to 
contribute code to the project. I have looked at 
https://cwiki.apache.org/confluence/display/AMBARI/How+to+Commit but it seems 
to be focused towards commiters and how to test patches.
Does something like this already exist?
Thanks,
Mike