add

app.py

@@ -3,7 +3,7 @@ from dataclasses import dataclass
 import pickle
 import os
 from typing import Iterable, Callable, List, Dict, Optional, Type, TypeVar
-from nlp4web_codebase.ir.data_loaders.dm import Document
+from nlp4web-codebase.nlp4web_codebase.ir.data_loaders.dm import Document
 from collections import Counter
 import tqdm
 import re