[fix] link for add page

app/controllers/front.php

@@ -38,6 +38,7 @@ $front->match('/add', function (Request $request) use ($app) {
 
     // display the form
     return $app['twig']->render('add.twig', array('form' => $form->createView()));
-});
+})
+->bind('add');
 
 return $front;

app/views/index.twig

@@ -15,7 +15,7 @@
 
     </div>
     {% endfor %}
-    <p><a href="index.php/add">{{ 'entry.add'|trans }}</a></p>
+    <p><a href="{{ path('add') }}">{{ 'entry.add'|trans }}</a></p>
 
 {% endif %}