hugo-theme-more-contentful/layouts/partials/header.html

<header aria-label="Site header">
  <nav class="site__nav-header">
    <a class="site__title" href="{{ "" | absLangURL }}">{{ $.Site.Title }}</a>
    <ul class="list">
      {{ with $.Site.Menus.main }}
        {{ range . -}}
          <li>
            <a href="{{ .URL | absLangURL }}">{{- .Name -}}</a>
          </li>
        {{ end }}
      {{ end }}
    </ul>
  </nav>
  {{- partial "components/theme-button.html" . }}
</header>