Update app.py

app.py

@@ -47,8 +47,8 @@ if __name__ == "__main__":
     example_sample = []
     if args.sample_img_path:
         image = Image.open(args.sample_img_path)
-        image.save(args.sample_img_path)
-        example_sample.append(args.sample_img_path)
+        image.save("cord_sample_receipt.png")
+        example_sample.append("cord_sample_receipt.png")
 
     pretrained_model = DonutModel.from_pretrained(args.pretrained_path)
     pretrained_model.encoder.to(torch.bfloat16)