Adirondack Child Theme for scrolling infinite scroll

functions.php

<?php

function adirondack_child_setup() {
	add_theme_support( 'infinite-scroll', array(
		'type'           => 'scroll',
		'container'      => 'main',
		'footer'         => 'page',
		'posts_per_page' => 12,
	) );
}
add_action( 'after_setup_theme', 'adirondack_child_setup', 20 );