Update main.py

main.py

@@ -3,7 +3,7 @@ from typing import Union
 from fastapi import FastAPI
 from fastapi.encoders import jsonable_encoder
 from fastapi.websockets import WebSocket, WebSocketDisconnect, WebSocketState
-from fastapi.responses import JSONResponse
+from fastapi.responses import HTMLResponse, JSONResponse
 
 from answerer import Answerer
 from mapper import Mapper