Fixes [YOCTO #11630]
To move toward a "how-to" dev-manual, I am consolidating procedures
for locating and establishing local copies of YP source files into
a single heading. I set up a "Working With Yocto Project Source
Files" section. This will contain sub-sections to find the various
areas of YP files and how to clone and check out stuff.
(From yocto-docs rev: 87ff4ee41a50e8aed6b9c5402c51bb47f5a252a3)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>