Add a WIP document explaining the internal inter-MD protocol.
Add a WIP document explaining the internal inter-MD protocol.

pizcogirl/Astron,blindsighttf2/Astron,pizcogirl/Astron,blindsighttf2/Astron,ketoo/Astron,ketoo/Astron,blindsighttf2/Astron,blindsighttf2/Astron,ketoo/Astron,pizcogirl/Astron,pizcogirl/Astron,ketoo/Astron