made heading clearer when parameters.ini is not writable

Resources/views/final.html.twig

@@ -3,8 +3,11 @@
 {% block content_class %}config_done{% endblock %}
 {% block content %}
     <h1>Well done!</h1>
+    {% if is_writable %}
     <h2>Your distribution is configured!</h2>
-
+    {% else %}
+    <h2>Your distribution is almost configured but...</h2>
+    {% endif %}
     <h3>
         <span>
             {% if is_writable %}