This adds a few words about:
- overall architecture and design
- protocol extension, agl-shell and agl-shell-desktop
- add inline code backticks for missing function names in policy API
Bug-AGL: SPEC-3386
Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: I96f2b08d80ec10dda4e080a772bd2f2456535631