Added information suggesting best use is from the
local.conf file.
(From yocto-docs rev: acfe2a58cab3ffbddaa1631e7df37d36f4f1422a)
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>