Updated some links. Also, rewrote the note about the libraries.
It was inaccurate.
(From yocto-docs rev: a0fce0ed36f3d0668e2d211433e7d93fb8833319)
Signed-off-by: Scott Rifenbark <srifenbark@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>