add chastell beginners guide to Sinatra
Merge pull request #207 from FloorD/master

add chastell's beginners guide to Sinatra
fix formatting issues sinatra guide
Merge pull request #208 from FloorD/master

fix formatting issues sinatra guide
add proper syntax highlight Sinatra starters guide
Merge pull request #209 from FloorD/master

add proper syntax highlight Sinatra starters guide
Merge branch 'upstream'

Conflicts:
	index.html