Fixes [YOCTO #11630]
I moved the "Workflows" section to the ref-manual. This section is
primarily concepts and needs to be out of the dev-manual, which
is being reconstituted into a "how-to" manual.
(From yocto-docs rev: 2f8bfaac3da9e2d7042ea381a3e8957f96b5bf5a)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
