Hey all,
I've also started a wiki for the discussion on how to organize pd documentation from within PD. (help0-menu)
This includes discussion about how to organize the externals in the menu, as well as the help search system, and eventually the structure of the doc/ folder as well.
If you want to contribute please do!
https://puredata.org/Members/bbogart/PDDocumentationStructure/
Thanks!
B.