Now that we've gotten enough of a sign-off
from everyone involved in the governance
process, the docs need to be reworked to use a
consistent terminology set, links, and directory
structure.
We've signed off on these demos conceptually.
The next step is for them to be implemented
and all blocking engineering work needs to be
enumerated and solved.
Rework of contributor docs to reflect actual flow
for both internal and external developers using
the PowerShell/PowerShell repo for the first time.
Includes updates to issue/PR guidelines, repo 101,
and CONTRIBUTING.md.