Update documentation on how to disable integration managers (#23489)

Signed-off-by: lukas <lukas.walter@aceart.de>

docs/config.md

@@ -360,8 +360,7 @@ For example:
 ## Integration managers
 
 Integration managers are embedded applications within Element to help the user configure bots, bridges, and widgets. An integration manager
-is a separate piece of software not typically available with your homeserver. To disable integrations, leave the options defined here out of
-your config.
+is a separate piece of software not typically available with your homeserver. To disable integrations, set the options defined here to `null`.
 
 1. `integrations_ui_url`: The UI URL for the integration manager.
 2. `integrations_rest_url`: The REST interface URL for the integration manager.