Add several software/services

Commercial and free services specific to Ruby or written in Ruby.
Add Ramaze
Merge pull request #114 from diegoviola/master

Add Ramaze
Merge pull request #113 from 8thcolor/master

Add several software/services
better wording

“Style guide” could refer to both a “coding style guide” or a “CSS/front-end/living style guide” gem.
fixed typo
Merge pull request #115 from hagenburger/patch-1

Better Wording