update fast api

app.py

@@ -26,7 +26,7 @@ Check out the docs for the `/predict` endpoint below to try it out!
 
 # NOTE - we configure docs_url to serve the interactive Docs at the root path
 # of the app. This way, we can use the docs as a landing page for the app on Spaces.
-app = FastAPI()
+app = FastAPI(docs_url="/", description=description)
 
 pipe = pipeline("document-question-answering", model="impira/layoutlm-document-qa")
 
@@ -45,9 +45,6 @@ pipe = pipeline("document-question-answering", model="impira/layoutlm-document-q
 #     output = pipe(image, question)
 #     return output
 
-@app.get("/")
-def read_root():
-    return {"Hello":"world"}
 
 @app.get("/hello")
 def read_root():