parse microformats in Atom content

 The XML::Atom::Microformats module brings the functionality of
 HTML::Microformats to Atom 1.0 Syndication feeds. It finds microformats
 embedded in the <content> elements (note: not <summary>) of Atom
 entries.
 .
 The general pattern of usage is to create an XML::Atom::Microformats
 object (which corresponds to an Atom 1.0 feed) using the "new_feed"
 method; then ask for the data, as a Perl hashref, a JSON string, or an
 RDF::Trine model.