Fix room_list_publication_rules docs for v.126.0

Author: HarHarLinks

docs/usage/configuration/config_documentation.md

@@ -4325,28 +4325,29 @@ room list by default_
 Example configuration:
 
 ```yaml
-# No rule list specified. Anyone may publish any room to the public list.
+# No rule list specified. No one may publish any room to the public list, except server admins.
 # This is the default behaviour.
 room_list_publication_rules:
 ```
 
 ```yaml
-# A list of one rule which allows everything.
+# A list of one rule which denies everything.
 # This has the same effect as the previous example.
 room_list_publication_rules:
-  - "action": "allow"
+  - "action": "deny"
 ```
 
 ```yaml
-# An empty list of rules. No-one may publish to the room list.
+# An empty list of rules.
+# This has the same effect as the previous example.
 room_list_publication_rules: []
 ```
 
 ```yaml
-# A list of one rule which denies everything.
-# This has the same effect as the previous example.
+# A list of one rule which allows everything.
+# This was the default behaviour pre v1.126.0.
 room_list_publication_rules:
-  - "action": "deny"
+  - "action": "allow"
 ```
 
 ```yaml