text: exports.run = (bot, message, args) => {
    if (!message.mentions.users.size) {
      return message.channel.send(`Your avatar: ${message.author.displayAvatarURL}`);
    }
    const avatarList = message.mentions.users.map(user => {
      return `${user.username}'s avatar: ${user.displayAvatarURL}`;
    });
    message.channel.send(avatarList);
  }