docs(docker,delegation): revert delegation changes, small wording fixes

docs/advanced/delegation.mdx

@@ -24,7 +24,6 @@ client = "https://matrix.example.com"
 server = "matrix.example.com:443"
 
 # (optional) customize your support contacts
-# Defaults to members of #admin room if unset
 #support_page =
 #support_role = "m.role.admin"
 #support_email =
@@ -43,10 +42,6 @@ services:
         client=https://matrix.example.com,
         server=matrix.example.com:443
         }
-
-      # You can also configure individual .well-knowns as below
-      # CONTINUWUITY_WELL_KNOWN__CLIENT: https://matrix.example.com
-      # CONTINUWUITY_WELL_KNOWN__SERVER: matrix.example.com:443
 ```
 
 ## Serving with a reverse proxy