Update app.py

app.py

@@ -8,7 +8,7 @@ import io
 import re
 from typing import List
 from langchain_community.vectorstores import Chroma
-from langchain_community.text_splitter import RecursiveCharacterTextSplitter
+from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.embeddings import SentenceTransformerEmbeddings
 from sentence_transformers import SentenceTransformer
 from sklearn.metrics.pairwise import cosine_similarity