CocoaPods 0.36.rc.1 - Pod Authors Guide to CocoaPods Frameworks

The extracted article from #59.

#### TODOs
* [x] Explain `module_name`
* [x] Review, stylistic improvements, fix typos, …
* [x] Add the assets
* [ ] Update **pygments.rb** to a version, which brings a lexer for Swift
Sure, sounds good, let's do it