Merge pull request #188695 from MicrosoftDocs/JasonWHowell-patch-4

Update device-update-simulator.md

Author: PRMerger3

articles/iot-hub-device-update/device-update-simulator.md

@@ -65,9 +65,9 @@ Once the Device Update agent is running on an IoT device, the device needs to be
    sudo /usr/bin/AducIotAgent --register-content-handler /var/lib/adu/extensions/sources/libmicrosoft_simulator_1.so --update-type 'microsoft/apt:1'
    ```
 
-   To register and invoke the simulator handler the command must follow the below format:
+   To register and invoke the simulator handler, use the following format, filling in the placeholders:
 
-   sudo /usr/bin/AducIotAgent --register--content-handler <full path to the handler file> --update-type <update type name>
+   `sudo /usr/bin/AducIotAgent --register--content-handler <full path to the handler file> --update-type <update type name>`
 
 4. Download the sample-du-simulator-data.json from [Release Assets](https://github.com/Azure/iot-hub-device-update/releases). Run the command below to create and edit the du-simulator-data.json in the tmp folder.