code: func help(p messenger.Profile, r *messenger.Response) error {
  	text := fmt.Sprintf(
  		"%s, looking for actions to do? Here is what I understand.",
  		p.FirstName,
  	)
  
  	replies := []messenger.QuickReply{
  		{
  			ContentType: "text",
  			Title:       "Login",
  		},
  		{
  			ContentType: "text",
  			Title:       "Logout",
  		},
  	}
  
  	return r.TextWithReplies(text, replies, messenger.ResponseType)
  }
docs: // help displays possibles actions to the user.