_includes/nav.html

<nav class="navbar navbar-default navbar-fixed-top">
  <div class="container-fluid">
    <div class="navbar-header">
      <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-items">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a href="{{ site.baseurl }}/"><img id="nav-logo" alt="Apache Pirk" class="img-responsive" src="{{ site.baseurl }}/images/pirkImage.png" width="150"/></a>
    </div>
    <div class="collapse navbar-collapse" id="navbar-items">
      <ul class="nav navbar-nav">
        <li class="nav-link"><a href="{{ site.baseurl }}/downloads">Download</a></li>
        <li class="dropdown">
        <a class="dropdown-toggle" data-toggle="dropdown" href="#">Documentation<span class="caret"></span></a>
        <ul class="dropdown-menu">
          <li id="nav_users"><a href="{{ site.baseurl }}/for_users">For Users</a></li>
          <li id="nav_developers"><a href="{{ site.baseurl }}/for_developers">For Developers</a></li>
          <li id="nav_developers"><a href="{{ site.baseurl }}/cloud_instructions">Cloud instructions</a></li>
          <li id="nav_papers"><a href="{{ site.baseurl }}/papers">Papers &amp Presentations</a></li>
          <li class="nav_faq"><a href="{{ site.baseurl }}/faq">FAQ</a></li>
          <li class="divider"></li>
           <li><a href="{{ site.baseurl }}/javadocs">Javadocs</a></li>     
        </ul>
        </li>
        <li class="dropdown">
        <a class="dropdown-toggle" data-toggle="dropdown" href="#">Community<span class="caret"></span></a>
        <ul class="dropdown-menu">
          <li id="nav_getinvolvedpirk"><a href="{{ site.baseurl }}/get_involved_pirk">Get Involved</a></li>
          <li id="nav_listspirk"><a href="{{ site.baseurl }}/mailing_list_pirk">Mailing Lists</a></li>
          <li id="nav_peoplepirk"><a href="{{ site.baseurl }}/people_pirk">People</a></li>
       	</ul>
        </li>
        <li class="dropdown">
        <a class="dropdown-toggle" data-toggle="dropdown" href="#">Development<span class="caret"></span></a>
        <ul class="dropdown-menu">
          <li id="nav_releasing"><a href="{{ site.baseurl }}/how_to_contribute">How to Contribute</a></li>
          <li id="nav_releasing"><a href="{{ site.baseurl }}/releasing">Making Releases</a></li>
          <li id="nav_nav_verify_release"><a href="{{ site.baseurl }}/verifying_releases">Verifying Releases</a></li>
          <li id="nav_update_website"><a href="{{ site.baseurl }}/website_updates">Website Updates</a></li>
          <hr>
          <li><a href="https://issues.apache.org/jira/browse/PIRK ">Issue Tracker/JIRA <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://builds.apache.org/job/pirk/">Jenkins Builds <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://travis-ci.org/apache/incubator-pirk">Travis CI Builds <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://github.com/apache/incubator-pirk"> Pirk Github Mirror <i class="fa fa-external-link"></i></a></li>
        </ul>
        </li>
        <li class="nav-link"><a href="{{ site.baseurl }}/roadmap">Roadmap</a></li>
       <ul class="nav navbar-nav navbar-right">
        <li class="dropdown">
        <a class="dropdown-toggle" data-toggle="dropdown" href="#">Apache Software Foundation<span class="caret"></span></a>
        <ul class="dropdown-menu">
          <li><a href="https://www.apache.org">Apache Homepage <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://www.apache.org/licenses/LICENSE-2.0">License <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://www.apache.org/foundation/sponsorship">Sponsorship <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://www.apache.org/security">Security <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://www.apache.org/foundation/thanks">Thanks <i class="fa fa-external-link"></i></a></li>
          <li><a href="https://www.apache.org/foundation/policies/conduct">Code of Conduct <i class="fa fa-external-link"></i></a></li>
        </ul>
        </li>
        </ul>
        </ul>
    </div> 
  </div>  
</nav>