Update users_in_keeper.md

Author: filimonov

content/en/altinity-kb-setup-and-maintenance/users_in_keeper.md

@@ -362,6 +362,7 @@ Operational implication:
 ```sql
 SELECT * FROM system.zookeeper_connection;
 SELECT * FROM system.zookeeper_connection_log ORDER BY event_time DESC LIMIT 100;
+SELECT * FROM system.zookeeper WHERE path = '/clickhouse/access';
 ```
 
 ### 9.2 Relevant server log patterns