Update aks-create-clusters-cli.md

Author: leslielin-5

AKS-Hybrid/aks-create-clusters-cli.md

@@ -53,7 +53,9 @@ az aksarc create -n $aksclustername -g $resource_group --custom-location $custom
 After a few minutes, the command completes and returns JSON-formatted information about the cluster.
 
 > [!NOTE]
-> When you use the `--generate-ssh-keys parameter`, a pair of SSH key files is generated on the local machine where you invoke the Az CLI.
+> - The SSH key value is the public key for accessing nodes in the provisioned cluster. By default, this key is located at `~/.ssh/id_rsa.pub`. You can specify a different location using the `--ssh-key-value` parameter during cluster creation.
+> - The `--generate-ssh-keys` parameter is required if there's no pre-existing SSH key on your local machine. If you don't include this parameter during cluster creation and no SSH key exists, you'll receive an error message.
+> - If you already have an SSH key on your local machine, the AKS cluster will reuse that key. In this case, specifying `--generate-ssh-keys` or not makes no difference.
 
 ## Connect to the Kubernetes cluster