Hi devs! 
@Andres.Aulasneo has kickstarted an effort to document his journey as a fledgling Open edX contributor: https://openedx.atlassian.net/wiki/spaces/COMM/pages/1682211674/Open+edX+contributor+s+guide
It would be great if more seasoned developers could have a look at this and collaboratively add content there. 
@jmbowman @nimisha @feanil maybe? Everyone should feel free to hack at it, in a wiki kind of way. Then this document could be published or migrated to the official docs.
Thanks!