Fix cmd in correct location

Author: PatAltimore

articles/iot-edge/how-to-create-transparent-gateway.md

@@ -119,6 +119,7 @@ If you don't have your own certificate authority and want to use demo certificat
 1. Change the ownership and permissions of the certificates and keys.
 
    ```bash
+   sudo chown aziotcs:aziotcs /var/aziot/certs
    sudo chown -R iotedge /var/aziot/certs
    sudo chmod 644 /var/aziot/secrets/
    ```
@@ -164,7 +165,6 @@ Now, you need to copy the certificates to the Azure IoT Edge for Linux on Window
 1. Change the ownership and permissions of the certificates and keys.
 
    ```bash
-   sudo chown aziotcs:aziotcs /var/aziot/certs
    sudo chown -R iotedge /var/aziot/certs
    sudo chmod 644 /var/aziot/secrets/iot-edge-device-ca-<cert name>.key.pem
    ```