Merge pull request #4617 from lavalamp/fix4

fix docs

docs/kubectl.md

@@ -30,10 +30,12 @@ kubectl
       --logtostderr=true: log to standard error instead of files
       --match-server-version=false: Require server version to match client version
       --namespace="": If present, the namespace scope for this CLI request.
+      --password="": Password for basic authentication to the API server.
   -s, --server="": The address and port of the Kubernetes API server
       --stderrthreshold=2: logs at or above this threshold go to stderr
       --token="": Bearer token for authentication to the API server.
       --user="": The name of the kubeconfig user to use
+      --username="": Username for basic authentication to the API server.
       --v=0: log level for V logs
       --validate=false: If true, use a schema to validate the input before sending it
       --vmodule=: comma-separated list of pattern=N settings for file-filtered logging
@@ -56,3 +58,4 @@ kubectl
 * [kubectl-stop](kubectl-stop.md)
 * [kubectl-expose](kubectl-expose.md)
 * [kubectl-label](kubectl-label.md)
+