<http://schema.org/url>
<http://www.gottabemobile.com/2014/03/15/how-to-use-google-drives-new-add-ons-in-google-docs-and-spreadsheets/>
<http://www.gottabemobile.com/2014/03/15/how-to-use-google-drives-new-add-ons-in-google-docs-and-spreadsheets/>