diff --git a/picoss/yousign-bundle/2.0/manifest.json b/picoss/yousign-bundle/2.0/manifest.json
index 5ce680cb..e1531746 100644
--- a/picoss/yousign-bundle/2.0/manifest.json
+++ b/picoss/yousign-bundle/2.0/manifest.json
@@ -6,6 +6,8 @@
         "config/": "%CONFIG_DIR%/"
     },
     "env": {
+        "#1": "To create a demo account, visit https://demo.yousign.fr/fr/public/api/registration",
+        "#2": "YOUSIGN_ENV should be 'demo' or 'prod'",
         "YOUSIGN_ENV": "demo",
         "YOUSIGN_API_KEY": "api_key",
         "YOUSIGN_USERNAME": "username",