profile-manual: Substituted real title image in.

(From yocto-docs rev: 7492d719e59fdc023da06554b7b65af63d76a6df)

Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>