Update docs for kubedb/webhook-server@26e96671

docs/reference/webhook-server/kubedb-webhook-server_run.md

@@ -50,6 +50,7 @@ kubedb-webhook-server run [flags]
       --audit-webhook-truncate-max-batch-size int               Maximum size of the batch sent to the underlying backend. Actual serialized size can be several hundreds of bytes greater. If a batch exceeds this limit, it is split into several batches of smaller size. (default 10485760)
       --audit-webhook-truncate-max-event-size int               Maximum size of the audit event sent to the underlying backend. If the size of an event is greater than this number, first request and response are removed, and if this doesn't reduce the size enough, event is discarded. (default 102400)
       --audit-webhook-version string                            API group and version used for serializing audit events written to webhook. (default "audit.k8s.io/v1")
+      --authentication-configmap-namespace string               Namespace of extension-apiserver-authentication configmap (default "kube-system")
       --authentication-kubeconfig string                        kubeconfig file pointing at the 'core' kubernetes server with enough rights to create tokenreviews.authentication.k8s.io.
       --authentication-skip-lookup                              If false, the authentication-kubeconfig will be used to lookup missing authentication configuration from the cluster.
       --authentication-token-webhook-cache-ttl duration         The duration to cache responses from the webhook token authenticator. (default 10s)