Goblins Shepherd Design Document

[Juliana Sims]

Hey y'all,

After a turbulent few months, I have an exciting announcement about the 
Goblins Shepherd port -- the design document has reached (initial) 
completion! [1]

The purpose of this document is to have a point of reference for 
thinking about the port as well as explaining it at a high but 
technical level to those who may be interested.  It is both the 
expression and culmination of experimentation to ensure the ideas in it 
are sound and applicable.  This preparatory work means the port itself 
should progress comparatively smoothly from this point onwards.

All work will happen in the wip-goblinsify branch to be merged back 
into mainline in the least-disruptive way possible.  I look forward to 
sharing progress with you all along the way, and please feel free to 
reach out with any questions, concerns, or feedback!

Thanks,
Juli

[1] 
https://git.savannah.gnu.org/cgit/shepherd.git/tree/goblins-port-design-doc.org?h=wip-goblinsify