Resolve "Extraction de la liste des tiers au format CSV"

src/Bundle/ChillThirdPartyBundle/Resources/views/Admin/index.html.twig

@@ -9,5 +9,9 @@
 {% block layout_wvm_content %}
     {% block admin_content %}<!-- block content empty -->
         <h1>{{ 'Third party configuration' |trans }}</h1>
+        <div>
+            <p>{{ 'admin.export_description'|trans }}</p>
+            <a href="{{ path('chill_thirdparty_admin_export_list') }}" class="btn btn-download"></a>
+        </div>
     {% endblock %}
-{% endblock  %}
+{% endblock  %}