Merge pull request #303239 from limwainstein/iot-hub-fix

IoT hub - small fix

Author: prmerger-automator[bot]

articles/defender-for-iot/device-builders/quickstart-onboard-iot-hub.md

@@ -123,7 +123,7 @@ To allow access to the IoT Hub:
 
 #### Set up access control for the IoT hub
 
-1. In your IoT hub, from the left menu bar, select **Access control (IAM)**, and from the top menu, select **Add > Add role assignment**.
+1. In your IoT hub's resource group, from the left menu bar, select **Access control (IAM)**, and from the top menu, select **Add > Add role assignment**.
 
 1. In the **Role tab**, select the **Privileged administrator roles** tab, and select the **Contributor** role.