added intro, figure

app.py

@@ -7,6 +7,7 @@ import os
 from stqdm import stqdm
 import time
 import shutil
+from PIL import Image
 
 import pickle
 docs = None
@@ -14,9 +15,15 @@ api_key = ' '
 
 st.set_page_config(layout="wide")
 
+image = Image.open('arxiv_decode.png')
+st.image(image, width=1000)
+
+
 #title
-st.title("Encode knowledge from papers with cited references")
-st.markdown("##### Current version  searches on ArXiv only.")
+st.title(" Encode knowledge from papers with cited references")
+st.markdown("##### This tool will allow you to ask questions based on scientific papers.It uses OpenAI's GPT models, and you must have your own API key. Each query is about 10k tokens, which costs about $0.20.")
+st.markdown("##### Current version searches on ArXiv papers only. 🚧Under development🚧")
+st.markdown("Used Libraries:\n * [PaperQA](https://github.com/whitead/paper-qa) \n* [langchain](https://github.com/hwchase17/langchain)")
 
 api_key_url = 'https://help.openai.com/en/articles/4936850-where-do-i-find-my-secret-api-key'