Update app.py

app.py

@@ -5,8 +5,12 @@ from llama_index.core import Settings
 import os
 import pdfplumber
 from docx import Document as DocxDocument
+from dotenv import load_dotenv
 import json
 
+# Load environment variables from .env file
+load_dotenv(".env")
+
 st.header("Chat with the Streamlit docs 💬 📚")
 
 # Sidebar for OpenAI API Key