drawer.html

<nav aria-label="Navigation">
  <div class="scrollable"> 
        <ul class="repo">
          <li class="repo-download">
            {% set version = config.extra.version | default("master") %}
            <a href="all.pdf" target="_blank" title="DOWNLOAD PDF VERSION" data-action="download">
              <i class="icon icon-download"></i> DOWNLOAD PDF VERSION
            </a>
          </li>
          </ul>
    <div class="wrapper">
        <hr>
      <div class="toc">
        <ul>
          {% for nav_item in nav %}
            {% include "nav.html" %}
          {% endfor %}
        </ul>
      </div>
    </div>
  </div>
</nav>