Add missing line

README.md

@@ -6,6 +6,7 @@ colorTo: yellow
 sdk: docker
 pinned: false
 license: mit
+app_port: 7860
 ---
 
 Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference

main.py

@@ -2,6 +2,6 @@ from fastapi import FastAPI
 
 app = FastAPI()
 
-
+@app.get("/")
 def read_root():
     return {"Hello": "World!"}