revised topic layout

_layouts/topic.html

@@ -48,7 +48,7 @@ This project is already completed.
 {% include image src=page.image %}
 {% endif %}
 
-{{ content }}
+
 
 {% if page.background %}
 <h2>Background</h2>
@@ -62,6 +62,8 @@ This project is already completed.
 {{ page.tasks | markdownify }}
 {% endif %}
 
+{{ content }}
+
 {% if page.preliminaries %}
 <h2>Preliminaries</h2>
 
@@ -140,3 +142,9 @@ This project is already completed.
 <br /><br />
 {% endfor %}
 {% endif %}
+
+{% if page.references %}
+<h2>References</h2>
+
+{{ page.references | markdownify }}
+{% endif %}