Update app.py

app.py

@@ -4,8 +4,7 @@ from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_core.documents import Document
 from langchain_huggingface import HuggingFaceEmbeddings
 from langchain_chroma import Chroma
-from langchain_community.
-llms import HuggingFaceHub
+from langchain_community.llms import HuggingFaceHub
 from langchain.prompts import ChatPromptTemplate
 from dotenv import load_dotenv
 import os