$output.='<p>'.t('This module provides hierarchical term formatters for taxonomy reference fields. In other words, it can display a taxonomy term reference on, say, a node as Parent > Child, rather than just Child.').'</p>';
$output.='<h3>'.t('Usage').'</h3>';
$output.='<p>'.t('Install and enable the module. Go to Admin » Structure » Content types and open the Display settings page for a taxonomy term field. (Taxonomy term fields may also be available on other entities than nodes.)').'</p>';