Update app.py

app.py

@@ -7,7 +7,7 @@ def answer_doc_question(pdf_file, question):
 
 # Add default a file and question, so it's easy to try out the app.
 pdf_input = gr.File(
-    value=""
+    value="https://comptroller.defense.gov/Portals/45/Documents/defbudget/FY2025/FY2025_Budget_Request.pdf",
     file_types=[".pdf"],
     label="Upload a PDF document and ask a question about it.",
 )