unifiying config description

Author: phil198

modules/ROOT/pages/configuration/configuration-settings.adoc

@@ -4624,7 +4624,7 @@ m|++++++
 [frame="topbot", stripes=odd, grid="cols", cols="<1s,<4"]
 |===
 |Description
-a|When set to `true`, users can *only* authenticate when there is a user in the database with an xref:authentication-authorization/auth-providers.adoc[Auth Provider] which links to the provider that the user is trying to authenticate with. If there is no matching xref:authentication-authorization/auth-providers.adoc[Auth Provider], the user will not be able to authenticate or authorize. This applies to all providers. Conversely, when set to `false`, users' xref:authentication-authorization/auth-providers.adoc[Auth Providers] will have no bearing on the way that they are authenticated and authorized, instead authentication and authorization will be controlled centrally (for all users) by the database configuration.
+a|This controls if a local user has to be created for external authentication. "If set to the default (`false`), no user has to be created to authenticate with an external authentication provider. If set to `true`, a user representing the external user must be created before they can authenticate successfully.
 |Valid values
 a|A boolean.
 |Default value