added comments by utterances

templates/comments.html

@@ -0,0 +1,9 @@
+<div>
+    <script src="https://utteranc.es/client.js"
+        repo="andwati/andwati.github.io"
+        issue-term="title"
+        theme="gruvbox-dark"
+        crossorigin="anonymous"
+        async>
+</script>
+</div>

templates/post.html

@@ -34,6 +34,7 @@ posts add article metadata. #}
       </header>
       {{ page.content | safe }}
     </article>
+    {% include "comments.html" %}
   </main>
   {% include "footer.html" %}
 {% endblock content %}