Updated the yocto-environment picture and added example command edits.
When scaled to fit the page the picture had a black vertical line
artifact to the right. I snipped out the image a little tigher to
eliminate this line.
I also incorporated Dirk's comments tightening up the sequence of
example commands to do the build. I incorporated Fedora 14 note
and addition of the BB_NUMBER_THREADS and PARALLEL_MAKE variables.
Signed-off-by: Scott Rifenbark <scott.m.rifenbark@intel.com>
