Comment under this issue:
  /co help      
    Outputs a usage message and exit.

  /co exclude [-t <team>] [-u <user>]      
    Usage: Will exclude the provided users / teams from any recommendations that our bot makes.

  /co include [-t <team>] [-u <user>]
    Usage: Will include the provided users / teams as a part of the recommendations our bot makes.

  /co suggest [-t][-u]      
    Usage: This command allows you to toggle whether the bot recommends teams or users

Comment on reviewed files in this pull:
  /co chown [add|remove|replace] [<user>|<team> ...]
    Usage: Add, remove or replace mentioned codeowners to the lines selected for the comment.