CocoaPods/Core — pull request #18 by sethfri (2013-05-22 16:49:17+00:00)
Title: Minor typographical fixes

On the CocoaPods website's [main specification page](http://docs.cocoapods.org/specification.html), single quotes are used for the source URL and the tag. This pull request aims to make that consistent in the [`source` documentation](http://docs.cocoapods.org/specification.html#source).