Update app.py

app.py

@@ -1,6 +1,7 @@
 import streamlit as st
 import os
 
-airline_tweet = st.text_input('English airline comment', '@AmericanAirline My flight was great!')
+st.title('Welcome to my twitter airline sentiment analysis !', anchor='center')
+airline_tweet = st.text_input('Enter your english airline tweet here:', '@AmericanAirline My flight was great!')
 st.write('The sentence is', airline_tweet)