harfbuzz/docs/usermanual-opentype-features.xml

<chapter id="shaping-and-shape-plans">
  <title>Shaping and shape plans</title>
  <section id="opentype-features">
    <title>OpenType features</title>
    <para>
    </para>
  </section>
  <section id="plans-and-caching">
    <title>Plans and caching</title>
    <para>
    </para>
  </section>
</chapter>