Fix html error in error pages (#255)

Author: edwardhorsford

app/views/example-pages/404.html

@@ -18,11 +18,12 @@ <h1>{{ pageHeading }}</h1>
 
   <h2>What you can do:</h2>
 
-  <li>refresh this page</li>
-  <li>go back to the previous page and try again</li>
-  <li><a href="/">go back to the home page</a></li>
-  
+  <ul>
+    <li>refresh this page</li>
+    <li>go back to the previous page and try again</li>
+    <li><a href="/">go back to the home page</a></li>
+  </ul>
+
   <p><a href="#">Contact us</a> if you are still unable to access the required information.</p>
 
 {% endblock %}
- 

app/views/example-pages/500.html

@@ -20,7 +20,6 @@ <h2>What you can do:</h2>
     <li><a href="/">go back to the home page</a></li>
   </ul>
 
-
   <p><a href="#">Contact us</a> if you are still unable to access the required information.</p>
 
 {% endblock %}