Designate a student randomly.

Usage
  $ ironyou JSON_PATH|"JSON_URL"|-

Examples
  $ ironyou path/to/wdpt202102par.json
  👉 John Doe
  
  $ ironyou https://gist.githubusercontent.com/abernier/ca69129511f00e362b071ec997934862/raw/806fa45439b2e0daa26ef0524bd324e6dad95a31/wdpt202102par.json
  👉 John Doe

  $ ironyou
  John Doe
  Patti Smith
  ^D
  👉 John Doe