Update app.py

app.py

@@ -48,7 +48,7 @@ def qwen_caption(image):
             "role": "user",
             "content": [
                 {"type": "image", "image": image},
-                {"type": "text", "text": "Caption the image"},
+                {"type": "text", "text": "Generate a detailed and optimized caption for the given image in the form of JSON data {}"},
             ],
         }
     ]