add example images

app.py

@@ -22,5 +22,5 @@ def classify_image(img):
 # label = gr.outputs.Label()
 examples =  ['grizzly.png', 'black.png', 'teddy.png']
 
-intf = gr.Interface(fn=classify_image, inputs="image", outputs="label")
+intf = gr.Interface(fn=classify_image, inputs="image", outputs="label", examples=examples)
 intf.launch(inline=False)