Update app.py

app.py

@@ -1,6 +1,9 @@
 import gradio as gr
 #from huggingface_hub import notebook_login
 
+def greet(name):
+    return "Hello " + name + "!"
+    
 demo = gr.Interface(
     fn=greet,
     inputs=gr.Textbox(lines=2, placeholder="Name Here..."),