hugo-theme-hilfe/layouts/posts/single.html

{{ define "main" }}
    {{ $dateFormat := default "January 2, 2006" .Site.Params.GeekdocDateFormat }}
    <article class="gdoc-markdown">
        <h1>{{ .Title }}</h1>
        <h5>
            <strong>{{ .Date.Format $dateFormat }}</strong>
        </h5>
        {{ partial "content" . }}
    </article>
{{ end }}