Update app.py

app.py

@@ -4,6 +4,7 @@ from langchain_groq import ChatGroq
 from langchain import hub
 from langchain_chroma import Chroma
 from langchain_community.document_loaders import WebBaseLoader
+from langchain.document_loaders import WebBaseLoader
 from langchain_core.output_parsers import StrOutputParser
 from langchain_core.runnables import RunnablePassthrough
 from langchain_text_splitters import RecursiveCharacterTextSplitter