Update association_subscribe_link

Author: Situphen

roles/app/templates/config.toml.j2

@@ -29,7 +29,9 @@ publications_being_written_forum_id = 23
 member_bot_username = "Clem"
 member_external_username = "Auteur externe"
 member_anonymous_username = "anonyme"
+
 association_fee = "25 €"
+association_subscribe_link = "https://www.helloasso.com/associations/zeste-de-savoir/adhesions/cotisations-2020-2021"
 
 visual_changes = {{ visual_changes | default([]) | to_json }}