square/retrofit — pull request #368 by swanson (2013-12-24 02:36:16+00:00)
Title: Update docs for Header/Headers

:christmas_tree: :snowman: Resurrecting #317

* Rebased on latest master
* Grabbed @jpotts18's original docs for `@Header`
* Added example of using `@Headers` as per @jakewharton

Anything else you'd like included?