gentoo-overlay/dev-tex/isotope/metadata.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
  <herd>tex</herd>
  <herd>sci</herd>
  <longdescription>
    The package provides a command \isotope for setting the atomic weight and
	atomic number indications of isotopes. (The naive way of doing the job with
	(La)TeX mathematics commands produces an unsatisfactory result.)
  </longdescription>
</pkgmetadata>