What is the right syntax to include in my RSS feed so that Zapier will recognize the field to use as Twitter / Facebook Page Image?
Right now I'm using a `media:thumbnail` attribute as per http://search.yahoo.com/mrss, e.g.:
<media:thumbnail url="http://www.example.com/foo.jpg"></media:thumbnail>
but unfortunately Zapier doesn't seem to be able to use that as a field.
Any suggestions?