Screenshot updates

Author: dominicbetts

articles/iot-central/core/concepts-device-authentication.md

@@ -3,7 +3,7 @@ title: Device authentication in Azure IoT Central | Microsoft Docs
 description: This article introduces key concepts relating to device authentication in Azure IoT Central
 author: dominicbetts
 ms.author: dobett
-ms.date: 03/02/2022
+ms.date: 10/28/2022
 ms.topic: conceptual
 ms.service: iot-central
 services: iot-central
@@ -118,7 +118,7 @@ To automatically register devices that use SAS tokens:
 
 1. Copy the group primary key from the **SAS-IoT-Devices** enrollment group:
 
-    :::image type="content" source="media/concepts-device-authentication/group-primary-key.png" alt-text="Group primary key from S A S - I o T - Devices enrollment group.":::
+    :::image type="content" source="media/concepts-device-authentication/group-primary-key.png" alt-text="Group primary key from SAS IoT Devices enrollment group." lightbox="media/concepts-device-authentication/group-primary-key.png":::
 
 1. Use the `az iot central device compute-device-key` command to generate the device SAS keys. Use the group primary key from the previous step. The device ID can contain letters, numbers, and the `-` character:
 

articles/iot-central/core/concepts-device-templates.md

@@ -45,7 +45,7 @@ IoT Central can automatically assign a device to a device template when the devi
 
 The following screenshot shows you how to view the model ID of a device template in IoT Central. In a device template, select a component, and then select **Edit identity**:
 
-:::image type="content" source="media/concepts-device-templates/model-id.png" alt-text="Screenshot showing model I D in thermostat device template.":::
+:::image type="content" source="media/concepts-device-templates/model-id.png" alt-text="Screenshot showing model ID in thermostat device template." lightbox="media/concepts-device-templates/model-id.png":::
 
 You can view the [thermostat model](https://github.com/Azure/iot-plugandplay-models/blob/main/dtmi/com/example/thermostat-1.json) in the public model repository. The model ID definition looks like:
 

articles/iot-central/core/concepts-telemetry-properties-commands.md

@@ -44,7 +44,7 @@ IoT Central lets you view the raw data that a device sends to an application. Th
 
 1. Select the **Raw data** tab:
 
-    :::image type="content" source="media/concepts-telemetry-properties-commands/raw-data.png" alt-text="Raw data view":::
+    :::image type="content" source="media/concepts-telemetry-properties-commands/raw-data.png" alt-text="Screenshot that shows the raw data view." lightbox="media/concepts-telemetry-properties-commands/raw-data.png":::
 
     On this view, you can select the columns to display and set a time range to view. The **Unmodeled data** column shows data from the device that doesn't match any property or telemetry definitions in the device template.