Update app.py

app.py

@@ -97,14 +97,14 @@ with gr.Blocks(theme=gr.themes.Monochrome()) as demo:
             chatbot = gr.ChatInterface(fn=response, additional_inputs=[doc_label], fill_height=True)
         with gr.Column(scale=1):
             sample_1 = "https://i.pinimg.com/originals/e3/44/d7/e344d7631cd515edd36cc6930deaedec.jpg"
-            sample_2 = "https://live.staticflickr.com/5307/5765340890_e386f42a99_b.jpg"
+            sample_2 = "https://www.explore.co.uk/medialibraries/explore/blog-images/2018%2012%20december/shutterstock_1080525158-2.jpg?ext=.jpg&width=620&format=webp&quality=80&v=202103231018"
             sample_3 = "https://blog.kakaocdn.net/dn/nqcUB/btrzYjTgjWl/jFFlIBrdkoKv4jbSyZbiEk/img.jpg"
             gallery = gr.Gallery(label="Retrieved images", 
                                  show_label=True, preview=True, 
                                  object_fit="contain", 
-                                 value=[(sample_1, 'sample_1'),
-                                        (sample_2, 'sample_2'), 
-                                        (sample_3, 'sample_3')])
+                                 value=[(sample_1, 'sample image'),
+                                        (sample_2, 'sample image'), 
+                                        (sample_3, 'sample image')])
             query = gr.Textbox(label="Enter query")
             button = gr.Button(value="Retrieve images")
             button.click(img_retrieve, [query, doc_label], gallery)