Created by: RyanAaronGreen
This PR is in response to #670 (closed).
I've gone through and made sure that all properties & states in article are up to date with what is provided in the documentation. I've added the following:
Properties: aria-colcount, aria-colindex, aria-colspan, aria-details, aria-errormessage, aria-keyshortcuts, aria-modal, aria-placeholder, aria-roledescription, aria-rowcount, aria-rowindex, aria-rowspan
States: aria-busy