Add test example

app.py

@@ -142,6 +142,7 @@ def run_demo():
 
     # NOTE: Examples must match inputs
     examples_full = [
+        ['hf_demo/examples/fox.png',200],
         ['hf_demo/examples/monkey.png',200],
         ['hf_demo/examples/cat.png',200],
         ['hf_demo/examples/crab.png',200],