added cactus theme files

hugo-content/themes/cactus/layouts/partials/comments/cactus_comments.html

@@ -0,0 +1,11 @@
+<div id="cactus-comments-thread">
+  <script>
+  initComments({
+    node: document.getElementById("cactus-comments-thread"),
+    defaultHomeserverUrl: '{{ default "https://matrix.cactus.chat:8448" .Site.Params.Comments.Cactuscomments.ServerUrl }}',
+    serverName: '{{ default "cactus.chat" .Site.Params.Comments.Cactuscomments.ServerName }}',
+    siteName: "{{ .Site.Params.Comments.Cactuscomments.SiteName }}",
+    commentSectionId: "{{ .RelPermalink }}"
+  })
+</script>
+</div>

hugo-content/themes/cactus/layouts/partials/comments/disqus.html

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+<div id="disqus_thread">
+  <script type="text/javascript">
+    (function() {
+      // Don't ever inject Disqus on localhost--it creates unwanted
+      // discussions from 'localhost:1313' on your Disqus account...
+      // if (window.location.hostname == "localhost")
+      //     return;
+    
+      var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
+      var disqus_shortname = '{{ if .Site.DisqusShortname }}{{ .Site.DisqusShortname }}{{ else }}{{ .Site.Title }}{{ end }}';
+      dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
+      (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
+    })();
+  </script>
+  <noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
+  <a href="https://disqus.com/" class="dsq-brlink">comments powered by <span class="logo-disqus">Disqus</span></a>
+</div>

hugo-content/themes/cactus/layouts/partials/comments/utterances.html

@@ -0,0 +1,10 @@
+<div id="disquss_thread">
+  <script src="https://utteranc.es/client.js"
+    repo="{{ .Site.Params.Comments.Utterances.Repo }}"
+    issue-term="pathname"
+    label="{{ .Site.Params.Comments.Utterances.Label }}"
+    theme="{{ .Site.Params.Comments.Utterances.Theme }}"
+    crossorigin="anonymous"
+    async>
+  </script>
+</div>