Doom is slowly transitioning away from requiring that its doom-*-dir
variables end in a slash (see two refs below), but there are some
vestiges of it left. This is one of them.
Fix: #6842
Ref: 00e8f6b72a
Ref: b914830403
Where they will be further generalized, later.
This also prevents an issue where org was loaded while the profile init
files are generated, which caused a warning about org-loaddefs which
introduces a noticable delay.
- Rename doom-docs--display-header-h -> doom-docs--display-menu-h to
better represent what it does.
- Add comments to describe the purpose of lib/docs, and TODO annotations
to hint at its future and remind me later.
I've omitted docs/*.org from this merge, as there is still work left to
do there, but I am pushing the module docs early so folks can benefit
from the new docs sooner.
