Update app.py

app.py

@@ -12,7 +12,8 @@ from langchain.text_splitter import RecursiveCharacterTextSplitter
 # for turning documents into embeddings before putting them in vector store
 from langchain.embeddings import HuggingFaceEmbeddings
 # for vector store for documents
-from langchain.vectorstores import Chroma
+# from langchain.vectorstores import Chroma
+from langchain_community.vectorstores import Chroma
 
 ### 3. For Querying LLM
 # for loading HuggingFace LLM models from the hub