feat: updating the image from png to webp

Author: PMR745

content/get-started/introduction/build-and-push-first-image.md

@@ -146,7 +146,7 @@ Now that you have a repository, you are ready to build and push your image. An i
 
 1. Open Visual Studio Code. Ensure you have the **Docker extension for VS Code** installed from [Extension Marketplace](https://marketplace.visualstudio.com/items?itemName=ms-azuretools.vscode-docker).
 
-   ![Screenshot of VS code showing how to clone a repository](images/install-docker-extension.png)
+   ![Screenshot of VS code extension marketplace](images/install-docker-extension.webp)
 
 2. In the **File** menu, select **Open Folder**. Choose **Clone Git Repository** and paste this URL: [https://github.com/docker/getting-started-todo-app](https://github.com/docker/getting-started-todo-app)