alt text and lightbox coding

Author: v-dirichards

articles/communication-services/tutorials/calling-widget/calling-widget-js-tutorial.md

@@ -199,7 +199,7 @@ This script using Node starts an HTTP server and hosts the `index.html` file and
 [!IMPORTANT]
 Note, if you try to go to the page not using local host, your calling experience won't work due to security reasons.
 
-![Screenshot of js bundle sample app homescreen](../media/calling-widget/js-bundle-splash.png)
+[![Screenshot of js bundle sample app homescreen.](../media/calling-widget/js-bundle-splash.png)](../media/calling-widget/js-bundle-splash.png#lightbox)
 
 Click the `start call` button seen in the [UI Library `CallComposite`](https://azure.github.io/communication-ui-library/?path=/docs/composites-call-basicexample--basic-example) to initiate a call to your Teams voice app.
 

articles/communication-services/tutorials/calling-widget/calling-widget-overview.md

@@ -33,7 +33,7 @@ If you want to try out the experience without following either of the tutorials,
 A complete start to finish tutorial built using [React](https://react.dev/) that teaches you to create a Calling widget using [Fluent UI](https://developer.microsoft.com/en-us/fluentui#/) and the UI Library.
 - [Get started with Azure Communication Services UI library calling to Teams Call Queue and Auto Attendant](./calling-widget-tutorial.md)
 
-![Screenshot of Calling Widget sample app home page](../media/calling-widget/sample-app-splash-widget-open.png)
+]![Screenshot of Calling Widget sample app home page.](../media/calling-widget/sample-app-splash-widget-open.png)](../media/calling-widget/sample-app-splash-widget-open.png#lightbox)
 
 #### Build it - Cross-platform: JavaScript
 
@@ -42,7 +42,7 @@ A complete start to finish tutorial built using [React](https://react.dev/) that
 We also include JavaScript bundles that you can use to integrate our `CallComposite` Calling experiences into your application that is not built in react. This tutorial uses our precompiled JavaScript bundles to integrate the `CallComposite` into your web page.
 - [Get started with Azure Communication Services UI library JavaScript bundles calling to Teams Call Queue and Auto Attendant](./calling-widget-js-tutorial.md)
 
-![Home page of js bundle sample app](../media/calling-widget/js-bundle-splash.png)
+[![Screenshot showing the home page of js bundle sample app.](../media/calling-widget/js-bundle-splash.png)].](../media/calling-widget/js-bundle-splash.png#lightbox)
 
 
 ## Next steps