bunteshaus.de/themes/buha/layouts/_default/_markup/render-heading.html

    {{ $url := (printf "%s#%s" .Page.Permalink .Anchor)  | safeURL }}
    <h{{ .Level }} id="{{ .Anchor | safeURL }}">
        {{ .Text | safeHTML }}
            <a class="heading-anchor" href="{{ $url }}" style="color: var(--text-muted); font-size: smaller;">
            {{ "#" }}
        </a>
    </h{{ .Level }}>