help, notificaion page updates and typos

      <li><a href="<?cs var:toroot ?>design/patterns/selection.html">Selection</a></li>

      <li><a href="<?cs var:toroot ?>design/patterns/notifications.html">Notifications</a></li>

      <li><a href="<?cs var:toroot ?>design/patterns/settings.html">Settings</a></li>

      <li><a href="<?cs var:toroot ?>design/patterns/help.html">Help</a></li>

      <li><a href="<?cs var:toroot ?>design/patterns/compatibility.html">Compatibility</a></li>

      <li><a href="<?cs var:toroot ?>design/patterns/pure-android.html">Pure Android</a></li>

    </ul>