Add Python Games usage, close #12
Fix links to images
Actually fix links to images
Fix image links
Add NOOBS screenshot
Correct wording of audio config instruction
Add XBMC usage page, close #14
Merge branch 'master' of github.com:raspberrypi/documentation
Correct image file extension png -> jpg
Change wording of page title installing -> using
Add power notes and move control higher up
Add link to GPIO usage page
typo
Table header typo

Thanks to Peter Mortensen for reporting
Merge remote-tracking branch 'upstream/master'