Update app.py

app.py

@@ -4,7 +4,7 @@ import gradio as gr
 from PyPDF2 import PdfReader
 from google import genai
 #from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.text_splitters import CharacterTextSplitters
+from langchain.text_splitter import CharacterTextSplitter
 from langchain_google_genai import GoogleGenerativeAIEmbeddings, ChatGoogleGenerativeAI
 from langchain_community.vectorstores import FAISS
 from langchain.chains.question_answering import load_qa_chain