How to create cron job in magento 2

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Cron:etc/crontab.xsd">
	<group id="default">
		<job name="jigar_cronexample_customcron" instance="Jigar\CronExample\Cron\Customcron" method="execute">
			<schedule>*/5 * * * *</schedule>
		</job>
	</group>
</config>

<?php
declare(strict_types=1);

namespace Jigar\CronExample\Cron;

class Customcron
{

    protected $logger;

    /**
     * Constructor
     *
     * @param \Psr\Log\LoggerInterface $logger
     */
    public function __construct(\Psr\Log\LoggerInterface $logger)
    {
        $this->logger = $logger;
    }

    /**
     * Execute the cron
     *
     * @return void
     */
    public function execute()
    {
        $this->logger->addInfo("Cronjob customcron is executed.");
    }
}