Update app.py

app.py

@@ -3,5 +3,5 @@ import gradio as gr
 def greet(name):
     return "Hello " + name + "!!"
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
-iface.launch()
+demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+demo.launch()