* Fix typo in Proposing a Change section in how-to-contribute.md
Not sure if it was actually intended or was a typo but changed 'If you intend to change to the public API' --> 'If you intend to make a change to the public API'
* Simplify
* Add more to Codebase Overview
* WIP
* Start a reconciler overview
* Add a few more sections
* todo
* WIP
* Finish it
* Whitespace
* Minor tweaks
* Minor tweaks