Update app.py

app.py

@@ -3,5 +3,8 @@ import gradio as gr
 def greet(img1, img2):
     return img2
 
-demo = gr.Interface(fn=greet, inputs=["image", "image"]", outputs="image")
+demo = gr.Interface(fn=greet, 
+                    inputs=["image", "image"]", 
+                    outputs="image", 
+                    exmaples=[['27-24522.jpg', '28-24766.jpg']])
 demo.launch()