Some small, general edits. Added a few links to some terms.
Did a little re-wording in various places.
(From yocto-docs rev: 621c5094789921874461c6618b54e50e00a2d141)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>