Update app.py

app.py

@@ -235,7 +235,7 @@ def handle_url(url: str) -> tuple[str, str | None]:
 
 
 print("Uploading")
-print(handle_url("https://faculty.kfupm.edu.sa/PHYS/aanaqvi/Introductory-Nuclear-Physics-new-Krane.pdf"))
+print(handle_url("https://ecss.nl/wp-content/uploads/2025/05/ECSS-E-ST-40C-Rev.1(30April2025).pdf"))
 
 # -----------------------------
 # Gradio App