hip-site/_includes/header.html

<nav class="navbar navbar-default navbar-fixed-top" role="navigation">
    <div class="container navigation">
        <div class="navbar-header">
            <a href="{{ site.baseurl }}/">
                <img src="/img/hip_logo_opt.svg" class="logo" alt="{{ site.title }}">
            </a>
            <button type="button" class="navbar-toggle collapsed" data-toggle="collapse"
                    data-target=".navbar-collapse">
                <span class="sr-only">Toggle navigation</span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
                <span class="icon-bar"></span>
            </button>
        </div>
        <div class="navbar-collapse collapse">
            <ul class="nav navbar-nav" id="footer-nav-links">
                <!-- <li>
                    <a href="#">
                        Fahrplan
                    </a>
		    </li> -->
                <li>
                    <a href="https://tickets.hackimpott.de/hip/2018/">
                        Tickets
                    </a>
                </li>
                <li>
                    <a href="https://wiki.hackimpott.de">
                        Wiki
                    </a>
                </li>
                <li>
                    <a href="anfahrt.html">
                        Anfahrt
                    </a>
                </li>
            </ul>
        </div>
    </div>
</nav>