Update app.py

app.py

@@ -266,10 +266,10 @@ with gr.Blocks(theme=Monochrome) as demo:
             download_button = gr.Button("Download Results as CSV")
 
             gr.Examples(
-            examples='zacks-nvidia-report.pdf',
+            examples=[['zacks-nvidia-report.pdf']],
             inputs=[pdf_files])
             gr.Examples(
-            examples='groundtruth.csv',
+            examples=[['groundtruth.csv']],
             inputs=[ground_truth_file])
             
         with gr.Column(scale=2):