comments: rm comments

- user needs to enable comments in hugo config
        + params:
            comments: true
    - disabled by default

layouts/_default/single.html

@@ -20,25 +20,9 @@
     </ul>
   </footer>
   {{- end }}
-  <!-- Comments area start -->
-  {{- if not (eq .Params.comments false) }}
-  {{- if .Site.DisqusShortname }}
-  <div id="disqus_thread"></div>
-  <script>
-    var disqus_shortname = '{{ .Site.DisqusShortname }}';
-    (function () {
-      var d = document, s = d.createElement('script');
-      s.src = 'https://' + disqus_shortname + '.disqus.com/embed.js';
-      s.setAttribute('data-timestamp', +new Date());
-      (d.head || d.body).appendChild(s);
-    })();
-  </script>
-  <noscript>
-    Please enable JavaScript to view the
-    <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a>
-  </noscript>
-  <!-- Comments area end -->
-  {{- end }}
+
+  {{- if $.Site.Params.comments }}
+  {{- partial "comments.html" . }}
   {{- end }}
 </article>
 

layouts/partials/comments.html

@@ -0,0 +1,5 @@
+<!-- Comments area start -->
+<!--
+to add comments read => https://gohugo.io/content-management/comments/
+-->
+<!-- Comments area end -->