Update app.py

app.py

@@ -13,7 +13,7 @@ from langchain_community.embeddings import HuggingFaceEmbeddings
 from huggingface_hub import HfFolder
 
 # Load token from environment variable
-token = os.getenv("token")
+token = os.getenv("HF_TOKEN")
 
 # Save the token to Hugging Face's system directory
 HfFolder.save_token(token)