fix: update templates

layouts/datengarten/single.html

@@ -41,7 +41,7 @@
 
 
       {{ if (.Params.comments) | or (and (or (not (isset .Params "comments")) (eq .Params.comments nil)) (and .Site.Params.comments (ne .Type "page"))) }}
-        {{ if .Site.DisqusShortname }}
+        {{ if .Site.Config.Services.Disqus.Shortname }}
           <div class="disqus-comments">
             {{ template "_internal/disqus.html" . }}
           </div><!--/.disqus-comments-->