Update site2/docs/reference-configuration.md

Co-authored-by: HuanliMeng <[email protected]>

site2/docs/reference-configuration.md

@@ -145,7 +145,7 @@ Pulsar brokers are responsible for handling incoming messages from producers, di
 |preferLaterVersions| If true, (and ModularLoadManagerImpl is being used), the load manager will attempt to use only brokers running the latest software version (to minimize impact to bundles)  |false|
 |maxNumPartitionsPerPartitionedTopic|Max number of partitions per partitioned topic. Use 0 or negative number to disable the check|0|
 |subscriptionKeySharedEnable| Enable Key_Shared subscription. |true|
-|maxFencedMessagesForKeySharedSubscription| Max fenced messages for Key_Shared subscription. Messages for the new consumer will be fenced until the previous messages are acknowledged |10000|
+|maxFencedMessagesForKeySharedSubscription| Set the maximum number of fenced messages for Key_Shared subscription. Messages for a new consumer are fenced until the previous messages are acknowledged. |10000|
 |tlsEnabled|  Enable TLS  |false|
 |tlsCertificateFilePath|  Path for the TLS certificate file ||
 |tlsKeyFilePath|  Path for the TLS private key file ||