Update app.py

app.py

@@ -1 +1,7 @@
-print("Hello World!");
+import streamlit as st
+
+def greet(name):
+    return "Saluuuuuuuut " + name + "! Monstre !"
+
+iface = st.Interface(fn=greet, inputs="text", outputs="text")
+iface.launch()