gentoo-overlay/sci-chemistry/gperiodic/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
	<herd>sci-chemistry</herd>
	<longdescription>
    GPeriodic is a program for looking up various data about elements from the
    periodic table, based on the GTK2 toolkit. It also features a command line
    interface.
  </longdescription>
</pkgmetadata>