gentoo-overlay/app-text/fictionup/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <maintainer type="person">
    <email>grozin@gentoo.org</email>
    <name>Andrey Grozin</name>
  </maintainer>
  <longdescription lang="en">
    fictionup is a command-line markdown to fb2 convertor. Metadata can be
    included in the input file as a yaml block or given by a command-line
    argument.
  </longdescription>
</pkgmetadata>