Merge branch 'mmora-master-patch-41884' into 'master'

Docs. Added clarification about multiple wildcards for one instance

See merge request gitlab-org/gitlab!56542

doc/administration/pages/index.md

@@ -190,6 +190,9 @@ then you'll need to also add the full paths as shown below:
 
 1. [Reconfigure GitLab](../restart_gitlab.md#omnibus-gitlab-reconfigure).
 
+WARNING:
+Multiple wildcards for one instance is not supported. Only one wildcard per instance can be assigned.
+
 ### Additional configuration for Docker container
 
 The GitLab Pages daemon doesn't have permissions to bind mounts when it runs