Use the following convention to provide versions of the HTML in different languages:

<span lang="en">
  <p>Hello!</p>
</span>
<span lang="fr">
  <p>Bounjour!</p>
</span>

This is the only documented way to provide multilingual package descriptions. “lpm -q -i” shows only the portion of the HTML package description inside a SPAN header with a “lang” attribute that matches the current locale's defined language.