Bootstrap 4 Alpha
    {% for group in site.data.nav %} {% assign link = group.pages | first %} {% assign slug = group.title | downcase | replace: ' ', '-' || page.title | downcase | replace: ' ', '-' %} {% assign active = nil %} {% if page.url contains slug %} {% assign active = 'active' %} {% endif %}
    {% if slug == "examples" %} {% else %} {% endif %} {{ group.title }}
      {% for doc in group.pages %} {% assign slug = doc.title | downcase | replace: ' ', '-' %} {% assign active = nil %} {% if page.url contains slug %} {% assign active = 'active bd-sidenav-active' %} {% endif %}
    • {{ doc.title }} {% comment %} {% unless doc.sections == nil %}
        {% for section in doc.sections %}
      • {{ section.title }}
        • {% endfor %}
      {% endunless %} {% endcomment %}
      • {% endfor %}
    {% endfor %}