Updated some links. Also, rewrote the note about the libraries.
It was inaccurate.
(From yocto-docs rev: ca6593ea9336dd1974ce65ce1d9ca15af8583915)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>