popov.link/_includes/navbar.html

<nav>
    {%- for link in site.data.navbar -%}
    <a href="{{- link.path | relative_url | url_escape -}}">{{- link.title | strip | normalize_whitespace | xml_escape -}}</a>
    {%- endfor -%}
    <span><span>|</span><a href="{{- site.rss | absolute_url | url_escape -}}">RSS</a></span>
</nav>