Update app.py

app.py

@@ -19,8 +19,12 @@ from langchain_huggingface import HuggingFaceEndpoint
 from dotenv import load_dotenv
 load_dotenv()
 HF_token = os.environ["HF_TOKEN"]
+######## Vector Store #######
 # process all files and get the vectorstores collections
-vectorstores = process_pdf()
+# vectorestore colection are stored on persistent storage so this needs to be run only once
+# hence, comment out line below when creating for first time
+# vectorstores = process_pdf()
+#------now we will only use the existing embedding----------
 
 # -------------------------------------------------------------
 # Functions