Update app.py

Replacing sample PDF file and associated sample questions with a smaller file (slow to index on **free CPU** provided by Hugging Face).

app.py

@@ -85,7 +85,7 @@ with gr.Blocks() as demo:
     with gr.Row():
         upload_files = gr.File(
             label="Upload PDF files to index", file_count="multiple",
-            value=["OECD_Engaging_with_HNW_individuals_tax_compliance_(2009).pdf",],
+            value=["OECD_Dividend_tax_fraud_2023-en.pdf",],
             scale=5)
         build_status = gr.Textbox(label="Build status", placeholder="", scale=2)
     
@@ -112,11 +112,14 @@ with gr.Blocks() as demo:
     with gr.Accordion("Sample questions", open=False):
         gr.Examples(
             [
-                ["What are the tax risks associated with high net worth individuals (HNWIs)?",],
-                ["How do tax administrations address aggressive tax planning by HNWIs?",],
-                ["How can tax administrations engage with HNWIs to improve tax compliance?",],
-                ["What are the benefits of establishing dedicated HNWI units within tax administrations?",],
-                ["How can international cooperation help address offshore tax risks associated with HNWIs?",],
+                ["What is dividend stripping?",],
+                ["What are the most common types of dividend stripping schemes?",],
+                ["How do authorities detect dividend stripping?",],
+                ["What are some indicators of potential dividend stripping?",],
+                ["What are the consequences of dividend stripping?",],
+                ["How can countries combat dividend stripping?",],
+                ["What is the role of professional enablers in dividend stripping?",],
+                ["How can countries address the role of professional enablers in dividend stripping?",],
             ],
             inputs=[question,],
             outputs=[response, references, snippets],