init symfony repo to modify a place without account

config/packages/notifier.yaml

@@ -0,0 +1,12 @@
+framework:
+    notifier:
+        chatter_transports:
+        texter_transports:
+        channel_policy:
+            # use chat/slack, chat/telegram, sms/twilio or sms/nexmo
+            urgent: ['email']
+            high: ['email']
+            medium: ['email']
+            low: ['email']
+        admin_recipients:
+            - { email: admin@example.com }