add surprise example

app.py

@@ -10,7 +10,8 @@ video_examples = [os.path.join(os.path.dirname(__file__),
 img_examples = [["examples/group_test.png"],
                 ["examples/happy.png"],
                 ["examples/fearful.png"],
-                ["examples/angry.jpeg"]]
+                ["examples/angry.jpeg"],
+                ["examples/surprised.jpeg"]]
 
 ai_models = Classifier()