add branch name as a class name in project detail

generator/templates/project.html

 {% extends "base.html" %}
 
 {% block content %}
-   <div class="repo">
+    <div class="repo branch-{{ project.default_branch }}">
         <header class="header">
             <h2 class="repo-title">{{ project.name }}</h2>
             <h2 class="repo-title"></h2>
@@ -21,6 +21,7 @@
 		        {{ project.readme }}
 		        </section>
 		    {% endif %}
+
 		    <section id="tree">
 			    <h3>Tree</h3>
 			    <ul>
@@ -29,6 +30,9 @@
 			      {% endfor %}
 			    </ul>
 		    </section>
+
+
+
 		    <section id="commits">
 
 			    <h3>Commits</h3>
@@ -46,4 +50,7 @@
 		    </section>
     </section>
    </div>
-{% endblock %}
+{% endblock content %}
+
+{% block script %}
+{% endblock script %}