public function addon_template() {
		?>
		<div class="mortgage-calculator-addon">
			<h3><?php echo esc_html__('Slack Notification add-on','CalculatorsSlackNotificationAddon'); ?></h3>
			<p><?php echo esc_html__('Description','CalculatorsSlackNotificationAddon'); ?></p>
			<a href="#" class="addon"><?php echo esc_html__('install add-on','CalculatorsSlackNotificationAddon'); ?></a>
		</div>
		<?php
	}