<header class=“site-header”>

<div class="wrapper">

  <a class="site-title" href="{{ "/" | relative_url }}">{{ site.title | escape }}</a>

  <nav class="site-nav">
    {% for link in site.data.navigation.main %}
      {% if link.url contains "http" %}
        {% assign url = link.url %}
      {% else %}
        {% assign url = link.url | relative_url %}
      {% endif %}
      <a class="page-link" href="{{ url }}">{{ link.title }}</a>
    {% endfor %}
  </nav>

</div>

</header>