Fixes for typos and some missing documentation

Lots of fixes for "it's" being used incorrectly.

ve.ce.Document.js
* Filled in documentation for missing params

ve.FormatAction.js
* Fixed incorrect tag for returns documentation

Change-Id: Ic256cc6952c31f5e6ae8be92919a0799cfe6188b
Merge "Fixes for typos and some missing documentation"