Polymer/docs — pull request #363 by addyosmani (2014-04-15 17:45:37+00:00)
Title: Adds Reusable elements core doc

Eruc asked for a version of this that was part of core docs instead of an article. This version adds a 'Reusable elements' item to the docs menu and this content with the title 'Creating reusable elements'.

reviewer: @ebidel