updates

templates/content_item.html

@@ -14,6 +14,11 @@
     <h1>{{ content_item.title }}</h1>
   {% endif %}
   <article>{{ content_item.html | safe }}</article>
+  <div id="categories" class="row">
+    {% for category in categories %}
+    <a href="{{ parent_path }}categories/{{ category }}.html" class="mx-2 small text-muted">{{ category }} </a>
+    {% endfor %}
+  </div>
   <a href="../index.html" class="btn btn-secondary mt-4">← Back</a>
 </div>
 {% endblock %}