diff --git a/website/docs/installation/modal/app.py b/website/docs/installation/modal/app.py
index 3654382..711b870 100644
--- a/website/docs/installation/modal/app.py
+++ b/website/docs/installation/modal/app.py
@@ -1,3 +1,7 @@
+"""Usage:
+modal serve app.py
+"""
+
 from modal import Image, Stub, asgi_app, gpu
 
 IMAGE_NAME = "tabbyml/tabby:0.3.1"