Troubleshooting Infinite Scroll

In trying to get Jetpack Infinite Scroll working, I made a clean install of WordPress 4.4.2 with Jetpack 3.9.1.

To keep things simple, I used the Twenty Sixteen theme.

Damn thing still doesn’t work. It seems to work on my home page but not for individual posts.

Where can I find a useful set of instructions?

This is what is in the twentysixteen.php file:

function twentysixteen_infinite_scroll_init() {
	add_theme_support( 'infinite-scroll', array(
		'container' => 'main',
		'render'    => 'twentysixteen_infinite_scroll_render',
		'footer'    => 'content',
	) );
}