title: Dynamically assign the text content of a certain day in react-native-calendars
body: <p>eg. when I click the date “ March, 7th ” ，the text “21 days” will appear on 21 days later date in calendar instead of "March，28th”.</p>
  
  <p><a href="https://i.stack.imgur.com/4FJp2.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/4FJp2.png" alt="enter image description here"></a></p>