updating gradio syntax to reflect latest version

app.py

@@ -15,4 +15,4 @@ examples = ['fundus_photo.jpeg']
 interpretation='default'
 enable_queue=True
 
-gr.Interface(fn=predict,inputs=gr.Image(),outputs=gr.outputs.Label(num_top_classes=3),title=title,description=description,examples=examples,interpretation=interpretation,enable_queue=enable_queue).launch()
+gr.Interface(fn=predict,inputs=gr.Image(),outputs=gr.Label(num_top_classes=3),title=title,description=description,examples=examples,interpretation=interpretation,enable_queue=enable_queue).launch()