ZOOKEEPER-4547: Change the documentation of client.certReload numbers

changed the versions to `New in 3.7.2, 3.8.1, 3.9.0:`

Author: Li Wang <li4wanggmail.com>

Author: liwang <liwang@apple.com>

Reviewers: Mate Szalay-Beko <symat@apache.org>, maoling <maoling@apache.org>

Closes #1886 from li4wang/ZOOKEEPER-4547

zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md

@@ -1747,7 +1747,7 @@ and [SASL authentication for ZooKeeper](https://cwiki.apache.org/confluence/disp
 
 * *client.certReload* :
     (Java system property: **zookeeper.client.certReload**)
-    **New in 3.9.0:**
+    **New in 3.7.2, 3.8.1, 3.9.0:**
     Allows client SSL keyStore and trustStore reloading when the certificates on the filesystem change without having to restart the ZK process. Default: false
 
 * *client.portUnification*: