message: fix .ping usage
diff: @@ -5,6 +5,6 @@ export default class PingCommand extends Command {
  execute(ctx: CommandContext): void {
  console.log(ctx.args, ctx.argString)
  - ctx.message.reply(`Pong! Latency: ${ctx.client.ping}ms`)
  + ctx.message.reply(`Pong! Latency: ${ctx.client.gateway.ping}ms`)
  }
  }
  