update readme

app/document_processor.py

@@ -1,5 +1,5 @@
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_huggingface import HuggingFaceEmbeddings
 from langchain_community.vectorstores import FAISS
 import os
 

requirements.txt

@@ -35,6 +35,7 @@ jsonpointer==2.4
 jsonschema==4.21.1
 jsonschema-specifications==2023.12.1
 langchain==0.1.17
+langchain-huggingface>=0.0.4
 langchain-community
 langchain-core==0.1.52
 langchain-text-splitters==0.0.1