Update app.py (#1)

- Update app.py (944513bc1d16a3de2531697d3a73612ef567e0e8)

app.py

@@ -1 +1,7 @@
-git add app.py && git commit -m 'Add application file' && git push
+import gradio as gr
+
+def greet(name):
+    return "Hello " + name + "!!"
+
+demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+demo.launch()