Update app.py

add counting example.

app.py

@@ -143,6 +143,7 @@ chat_interface = gr.ChatInterface(
     stop_btn="Stop",
     cache_examples=False,
     examples=[
+        ["You are three years old.  Count from one to ten."],
         ["Explain quantum physics in 5 words or less:"],
         ["Question: What do you call a bear with no teeth?\nAnswer:"],
     ],