Update app.py

app.py

@@ -1,7 +1,22 @@
-import gradio as gr
+# -*- coding: utf-8 -*-
+"""GRADIO: Hello World.ipynb
+Automatically generated by Colaboratory.
+Original file is located at
+    https://colab.research.google.com/drive/18ODkJvyxHutTN0P5APWyGFO_xwNcgHDZ
+## Using Gradio to create a simple interface.
+Check out the library on [github](https://github.com/gradio-app/gradio-UI) and see the [getting started](https://gradio.app/getting_started.html) page for more demos.
+We'll start with a basic function that greets an input name.
+"""
 
 def greet(name):
-    return "Hello " + name + "!!"
+  return "Hello " + name + "!"
 
-iface = gr.Interface(fn=greet, inputs="text", outputs="text")
-iface.launch()
+greet("World")
+
+"""Now we'll wrap this function with a Gradio interface."""
+
+import gradio
+
+gradio.Interface(greet, "text", "text").launch()
+
+"""That's all! Go ahead and open that share link in a new tab. Check out our [getting started](https://gradio.app/getting_started.html) page for more complicated demos."""