<nav class=“sidebar-navigation”>

<section class="sidebar-navigation--logo">
  <a href='/'><img src="/assets/images/logo.png"
                   alt="Turing School of Software and Design"
                   class="turing-logo">
  </a>
</section>
<div class="sidebar-navigation--links" >
  <section class="sidebar-navigation--before">

    {% for item in site.data.navigation.toc %}
      <h1>{{ item.title }}</h1>
        <ul>
          {% for entry in item.subfolderitems %}
            <li><a href="{{ entry.url }}">{{ entry.page }}</a></li>
          {% endfor %}
        </ul>
    {% endfor %}
  </section>
</div>

</nav>