enable hosting the website also on other domains (#355)

Jan Steinke

14.29.2021 e3f7fbe39d7b24d43e80a3c95aa3d940731ac535

 layouts/post/summary.html

@@ -5,7 +5,7 @@
      </div>
    {{ end }}
    <h1 class="f3 near-black">
      <a href="{{ .Permalink }}" class="link black dim">
      <a href="{{ .RelPermalink }}" class="link black dim">
        {{ .Title }}
      </a>
    </h1>