Renamed "About" in header to "DSF".

Author: sarahboyce

djangoproject/templates/includes/header.html

@@ -37,7 +37,7 @@
           <a href="https://code.djangoproject.com/">Issues</a>
         </li>
         <li{% if 'foundation' in request.path %} class="active"{% endif %}>
-          <a href="{% url 'homepage' %}foundation/">About</a>
+          <a href="{% url 'homepage' %}foundation/">DSF</a>
         </li>
         <li{% if 'fundraising' in request.path %} class="active"{% endif %}>
           <a href="{% url 'fundraising:index' %}">&#9829; Donate</a>