#Introduction The main ideas and philosophies behind how the project is constructed.
#Overview The main "components" of the project. What are the different responsibilites? Could be per-file if there aren't a lot of files. The aim is to help other developers navigate your code, but not be so deep that it quickly gets antiquated.
#Installation If there are any dependencies that needs to be installed to work with the project, or anything else needed to get up and running with developing a patch or fork.
#Requests This is a technical roadmap of things you would like to do but might not have time for. Things you know "smell bad" and would like to fix, if you have time. Basically what you wish people would do Pull Requests for.