Update app.py

app.py

@@ -100,7 +100,7 @@ st.title("Chat with your PDF📄")
 st.markdown("**Built by [Pachaiappan❤️](https://mr-vicky-01.github.io/Portfolio/)**")
 
 if 'messages' not in st.session_state:
-    st.session_state.messages = [{'role': 'assistant', "content": 'Hello! Upload a PDF and ask me anything about the content.'}]
+    st.session_state.messages = [{'role': 'assistant', "content": 'Hello! Upload a PDF/Youtube Video link and ask me anything about the content.'}]
 
 for message in st.session_state.messages:
     with st.chat_message(message['role'], avatar=icons[message['role']]):