Enhance README with additional images

Added images to the README for better visualization.

Author: brown9804

7_iot/digital-twins/README.md

@@ -11,6 +11,12 @@ Last updated: 2026-02-17
 
 > This template creates an Azure Digital Twins instance.
 
+<img width="1488" height="780" alt="image" src="https://github.com/user-attachments/assets/14ccddbf-bf03-4f0e-bfa9-14f4fbc997ee" />
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+<img width="1583" height="964" alt="image" src="https://github.com/user-attachments/assets/76c37f8a-2e3c-4aec-bb18-4b72646a18b0" />
+
+<img width="1903" height="993" alt="image" src="https://github.com/user-attachments/assets/09f1ee58-e033-4297-af20-72f186ca43b4" />
+
 ## Usage
 
 ```sh