add suggested changes

_data/rules.yml

@@ -1097,21 +1097,18 @@ groups:
                 description: "Zookeeper down on instance {{ $labels.instance }}"
                 query: 'zk_up == 0'
                 severity: critical
-                for: 3m
               - name: Zookeeper missing leader
                 description:  "Zookeeper cluster has no node marked as leader"
                 query: 'sum(zk_server_leader) == 0'
                 severity: critical
-                for: 3m
               - name: Zookeeper Too Many Leaders
                 description: "Zookeeper cluster has too many nodes marked as leader"
                 query: 'sum(zk_server_leader) > 1'
                 severity: critical
-                for: 3m
               - name: Zookeeper Not Ok
                 description: "Zookeeper instance is not ok"
                 query: 'zk_ruok == 0'
-                severity: high
+                severity: warning
                 for: 3m
 
       - name: Kafka