[readme] update this finally to github markdown

oooo what, you, its a, could be it be a readme?
Yes it is :)
Merge pull request #35 from uNiversaI/readme

[updates] Readme and File headers
errouneous a

@jalle

2 second to fix

5 seconds to point it out.
Merge pull request #36 from uNiversaI/patch-1

[readme] fix typo errouneous "a" after lubuntu
Merge pull request #1 from xbmc/master

sync with upstream