Update README.md

Author: benieric

README.md

@@ -137,7 +137,7 @@ This command submits a new training job to the connected SageMaker HyperPod clus
 hyperpod start-job --job-name <job-name> [--namespace <namespace>] [--job-kind <kubeflow/PyTorchJob>] [--image <image>] [--command <command>] [--entry-script <script>] [--script-args <arg1 arg2>] [--environment <key=value>] [--pull-policy <Always|IfNotPresent|Never>] [--instance-type <instance-type>] [--node-count <count>] [--tasks-per-node <count>] [--label-selector <key=value>] [--deep-health-check-passed-nodes-only] [--scheduler-type <Kueue SageMaker None>] [--queue-name <queue-name>] [--priority <priority>] [--auto-resume] [--max-retry <count>] [--restart-policy <Always|OnFailure|Never|ExitCode>] [--volumes <volume1,volume2>] [--persistent-volume-claims <claim1:/mount/path,claim2:/mount/path>] [--results-dir <dir>] [--service-account-name <account>]
 ```
 
-* `job-name` (string) - Required. The name of the job.
+* `job-name` (string) - Required. The base name of the job. A unique identifier (UUID) will automatically be appended to the name like `<job-name>-<UUID>`.
 * `job-kind` (string) - Optional. The training job kind. The job type currently supported is `kubeflow/PyTorchJob`.
 * `namespace` (string) - Optional. The namespace to use. If not specified, this command will first use the namespace when connecting the cluster. Otherwise if namespace is not configured when connecting to the cluster, a namespace that is managed by SageMaker will be auto discovered.
 * `image` (string) - Required. The image used when creating the training job.