site/_includes/header.html
<header class="site-header px2 px-responsive">
<div class="mt2 wrap">
<div class="measure">
<a href="{{ site.url | append:site.baseurl }}" class="site-title"><img src="{{ site.url | append:site.baseurl }}/{{ site.logo }}" height="35px" /></a>
<nav class="site-nav right">
{% include navigation.html %}
</nav>
<div class="clearfix"></div>
</div>
</div>
</header>