Update app.py

app.py

@@ -60,7 +60,7 @@ def launch_bot():
     with st.sidebar:
         image = Image.open('Vectara-logo.png')
         st.image(image, width=175)
-        st.markdown(f"## Welcome to {cfg.title}\n\n"
+        st.markdown(f"## About\n\n"
                     f"This demo uses Retrieval Augmented Generation to ask questions about {cfg.source_data_desc}\n\n")
 
         st.markdown("---")