Align footer with the main content

doc/bootstrap/layout.html

@@ -118,6 +118,8 @@
 {%- block footer %}
 <footer class="footer">
   <div class="container">
+    <div class="row">
+      <div class="col-md-8 col-md-offset-2">
         <p class="pull-right">
           <a href="#">Back to top</a>
           {% if theme_source_link_position == "footer" %}
@@ -141,5 +143,7 @@
         {%- endif %}
         </p>
       </div>
+    </div>
+  </div>
 </footer>
 {%- endblock %}