Update app.py

app.py

@@ -1,9 +1,10 @@
 from fastapi import FastAPI, Form, Request
-from fastapi.responses import HTMLResponse
+from fastapi.responses import HTMLResponse, FileResponse
 from fastapi.templating import Jinja2Templates
+import os
 
 app = FastAPI()
-templates = Jinja2Templates(directory="templates")
+templates = Jinja2Templates(directory=os.path.dirname(__file__))
 
 @app.get("/", response_class=HTMLResponse)
 async def read_form(request: Request):