revised to minumize usage of whitelist/blacklist

content/en/docs/setup/production-environment/tools/kubeadm/create-cluster-kubeadm.md

@@ -495,10 +495,10 @@ and `scp` using that other user instead.
 
 The `admin.conf` file gives the user _superuser_ privileges over the cluster.
 This file should be used sparingly. For normal users, it's recommended to
-generate an unique credential to which you whitelist privileges. You can do
+generate an unique credential to which you grant privileges. You can do
 this with the `kubeadm alpha kubeconfig user --client-name <CN>`
 command. That command will print out a KubeConfig file to STDOUT which you
-should save to a file and distribute to your user. After that, whitelist
+should save to a file and distribute to your user. After that, grant
 privileges by using `kubectl create (cluster)rolebinding`.
 {{< /note >}}