Add a new product demo video (#4520)

Author: braginini

README.md

@@ -1,3 +1,4 @@
+
 <div align="center">
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 ### Open Source Network Security in a Single Platform
 
-<img width="1188" alt="centralized-network-management 1" src="https://github.com/user-attachments/assets/c28cc8e4-15d2-4d2f-bb97-a6433db39d56" />
+https://github.com/user-attachments/assets/10cec749-bb56-4ab3-97af-4e38850108d2
 
 ### NetBird on Lawrence Systems (Video)
 [![Watch the video](https://img.youtube.com/vi/Kwrff6h0rEw/0.jpg)](https://www.youtube.com/watch?v=Kwrff6h0rEw)