Provided more detail and a cross-reference into the SDK manual
where you can change the title through the variable.
(From yocto-docs rev: 9617fa70caef48328455a02d5260e536fac19c53)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>