{% macro render_headings(headings) %}
  <ul>
  {% for item in headings %}
    <li>
      <a href="{{ pathto(item.link).replace("#", "") + '#' + item.anchor }}">{{ item.text }}</a>
      {% if item.children %}
        {{ render_headings(item.children) }}
      {% endif %}
    </li>
  {% endfor %}
  </ul>
{% endmacro %}

{% if local_md_headings %}
<div class="local-md-headings">
  <h3>Page Headings</h3>
  {{ render_headings(local_md_headings) }}
</div>
{% endif %}