client.on('message', message => {
if (message.content.startsWith(prefix + "membercount")) {
   let botembed = new Discord.RichEmbed()
        .setColor("black")
        .addField("There are currently",  ` ${message.guild.memberCount} members here.`,true)
        .setTimestamp()
        .setFooter(message.author.username, message.author.avatarURL);
    message.channel.send(botembed);
      }
    })