added title and subheader

app.py

@@ -1,6 +1,7 @@
 import streamlit as st
 
-st.header("This is our app")
+st.title("This is our app")
+st.text("This is just a random para meant to fill out the space over here till we have something")
 
 x = st.slider('Select a value')
 st.write(x, ' squared is', x * x)