very small change

Author: w-azure

articles/iot-hub/iot-hub-create-using-cli.md

@@ -45,7 +45,7 @@ Use the Azure CLI to create a resource group and then add an IoT hub.
    [!INCLUDE [iot-hub-pii-note-naming-hub](../../includes/iot-hub-pii-note-naming-hub.md)]
 
 
-The previous command creates an IoT hub in the S1 pricing tier for which you are billed. For more information, see [Azure IoT Hub pricing](https://azure.microsoft.com/pricing/details/iot-hub/).
+The previous command creates an IoT hub in the S1 pricing tier for which you're billed. For more information, see [Azure IoT Hub pricing](https://azure.microsoft.com/pricing/details/iot-hub/).
 
 ## Remove an IoT Hub