Update footer and add no-bullets class for unordered lists

_layouts/note.html

@@ -11,13 +11,13 @@ layout: default
 {% if page.backlinks.size > 0 %}
 <div class="backlink-box">
     <h3>Notes mentioning this note</h3>
-    <div>
+    <ul class="no-bullets">
         {% for backlink in page.backlinks %}
-        <div class="backlinks">
+        <li class="backlinks">
             <a class="internal-link" href="{{ site.baseurl }}{{ backlink.url }}{%- if site.use_html_extension -%}.html{%- endif -%}">{{ backlink.title }}</a><br>
-        </div>
+        </li>
         {% endfor %}
-    </div>
+    </ul>
 </div>
 {% endif %}