title: How do I use calculated value date in Sharepoint lists field to find a date+30 days?
body: <p>I have a list I've built in Sharepoint, where one of the fields is a date that the user enters.
  I want to add another field, which is a calculated value field that needs to be the date provided by the user + 30 days.
  What formula do I need to pass to the calculated value field to achieve that?</p>