feat: add examples.

app.py

@@ -186,6 +186,11 @@ demo = gr.ChatInterface(
         ),
     ],
     type="messages",
+    examples=[
+      "What is 42 to the power of 42?",
+      "Calculate 3.14159 * 2",
+      "Compute 2^10",
+    ],
     title="Groq Tool Use Chat",
     description="This chatbot uses the `llama3-groq-8b-8192-tool-use-preview` LLM with tool use capabilities, including a calculator function.",
 )