Update app.py

app.py

@@ -2,7 +2,7 @@ import gradio as gr
 from langchain_community.document_loaders import TextLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_huggingface import HuggingFaceEmbeddings
-from langchain_chroma import Chroma
+from langchain.vectorstores import Chroma 
 from groq import Groq
 import os