Add in examples: python -c "import gradio; print(gradio.__version__")

app.py

@@ -142,6 +142,7 @@ iface = gr.Interface(
         "df -h .",
         "cat /proc/cpuinfo",
         """python -c "from psutil import virtual_memory; print(virtual_memory())" """,
+        """python -c "import gradio; print(gradio.__version__")""",
     ],
     title="probe the system",
     description="Talk to the system via subprocess.check_output ",