Add screenshot to Go quickstart article

- Add visual-studio-code-extension.png to media directory
- Insert image reference in 'View and manage data' section
- Screenshot shows Azure Cosmos DB extension with Hotels database

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: diberry

articles/cosmos-db/media/quickstart-vector-store-go/visual-studio-code-extension.png

@@ -538,6 +538,8 @@ For detailed information on distance functions, see [What are distance functions
 1. Select the [Cosmos DB extension](https://marketplace.visualstudio.com/items?itemName=ms-azuretools.vscode-cosmosdb) in Visual Studio Code to connect to your Azure Cosmos DB account.
 1. View the data and indexes in the Hotels database.
 
+   :::image type="content" source="./media/quickstart-vector-store-go/visual-studio-code-extension.png" alt-text="Screenshot of Visual Studio Code showing the Azure Cosmos DB extension with Hotels database items and a JSON document editor." lightbox="./media/quickstart-vector-store-go/visual-studio-code-extension.png":::
+
 ## Clean up resources
 
 [!INCLUDE [Clean up resources](./includes/clean-up-resources.md)]