docs: Initial start on process design rules.

Updates and documentation originally improved and then release by
Kevin Kelly <kevin.kelley@skywatertechnology.com> to Google for imported
into the docutils RST format by Tim 'mithro' Ansell <tansell@google.com>.

Signed-off-by: Kevin Kelley <kevin.kelley@skywatertechnology.com>
Signed-off-by: Tim 'mithro' Ansell <tansell@google.com>
13 files changed