Adjusted some images

Author: w-azure

articles/iot-edge/media/tutorial-deploy-function/view-modules.png

@@ -25,9 +25,7 @@ You can use Azure Functions to deploy code that implements your business logic d
 > * Deploy the module from the container registry to your IoT Edge device.
 > * View filtered data.
 
-<center>
-![Diagram - Tutorial architecture: stage and deploy function module](./media/tutorial-deploy-function/functions-architecture.png)
-</center>
+:::image type="content" source="./media/tutorial-deploy-function/functions-architecture.png" alt-text="Diagram of function architecture, showing how to stage and deploy a function module.":::
 
 The Azure Function that you create in this tutorial filters the temperature data that's generated by your device. The Function only sends messages upstream to Azure IoT Hub when the temperature is above a specified threshold.
 
@@ -71,7 +69,7 @@ Create a C# Function solution template that you can customize with your own code
    | Provide a module name | Name your module **CSharpFunction**. |
    | Provide Docker image repository for the module | An image repository includes the name of your container registry and the name of your container image. Your container image is prepopulated from the last step. Replace **localhost:5000** with the **Login server** value from your Azure container registry. You can retrieve the Login server from the Overview page of your container registry in the Azure portal. The final string looks like \<registry name\>.azurecr.io/CSharpFunction. |
 
-   ![Provide Docker image repository](./media/tutorial-deploy-function/repository.png)
+   :::image type="content" source="./media/tutorial-deploy-function/repository.png" alt-text="Screenshot showing where to choose your Docker image repository in Visual Studio Code.":::
 
 ### Add your registry credentials
 
@@ -218,7 +216,7 @@ You can use the Azure portal to deploy your Function module to an IoT Edge devic
 
     It may take a few moments for the new modules to show up. Your IoT Edge device has to retrieve its new deployment information from IoT Hub, start the new containers, and then report the status back to IoT Hub.
 
-   ![View deployed modules in Visual Studio Code](./media/tutorial-deploy-function/view-modules.png)
+   :::image type="content" source="./media/tutorial-deploy-function/view-modules.png" alt-text="Screenshot showing how to view deployed modules in Visual Studio Code.":::
 
 ## View the generated data