Apply suggestions from code review

Co-authored-by: Kelly Gremban <[email protected]>

Author: ktoliver

articles/iot-edge/production-checklist.md

@@ -163,8 +163,8 @@ Obtain the images with the Docker pull command to place in your private registry
 
 | IoT Edge runtime container | Docker pull command |
 | --- | --- |
-| [Azure IoT Edge Agent](https://hub.docker.com/_/microsoft-azureiotedge-agent) | `docker pull mcr.microsoft.com/azureiotedge-agent:1.0` |
-| [Azure IoT Edge Hub](https://hub.docker.com/_/microsoft-azureiotedge-hub) | `docker pull mcr.microsoft.com/azureiotedge-hub:1.0` |
+| [Azure IoT Edge Agent](https://hub.docker.com/_/microsoft-azureiotedge-agent) | `docker pull mcr.microsoft.com/azureiotedge-agent:<VERSION_TAG>` |
+| [Azure IoT Edge Hub](https://hub.docker.com/_/microsoft-azureiotedge-hub) | `docker pull mcr.microsoft.com/azureiotedge-hub:<VERSION_TAG>` |
 
 Next, be sure to update the image references in the deployment.template.json file for the edgeAgent and edgeHub system modules. Replace `mcr.microsoft.com` with your registry name and server for both modules.