twbs--bootstrap/docs/_includes/home-nav.html

<header class="navbar navbar-inverse navbar-static-top bs-docs-nav" id="top" role="banner">
  <a href="../" class="navbar-brand">Bootstrap</a>
  <ul class="nav nav-pills pull-left">
    {% for group in site.data.nav %}
      {% assign link = group.pages | first %}
      {% assign slug = group.title | downcase | replace: ' ', '-' || page.title | downcase | replace: ' ', '-' %}
      <li class="nav-item">
        <a class="nav-link" href="{{ site.baseurl }}{{ group.title | downcase | replace: ' ', '-' }}/{{ link.title | downcase | replace: ' ', '-' || page.title | downcase | replace: ' ', '-'  }}">
          {{ group.title }}
        </a>
      </li>
    {% endfor %}
  </ul>
  <ul class="nav nav-pills pull-right">
    <li class="nav-item">
      <a class="nav-link" href="{{ site.expo }}" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Expo');">Expo</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="{{ site.blog }}" onclick="ga('send', 'event', 'Navbar', 'Community links', 'Blog');">Blog</a>
    </li>
  </ul>
</header>