Homepage Help

functions.php

<?php

/**
 * Add Homepage Help
 * @link http://www.billerickson.net/code/homepage-help
 * 
 * @param string $post_type
 * @param object $post
 */
function be_homepage_help( $post_type, $post ) {
	if( $post->ID !== get_option( 'page_on_front' ) )
		return;
		
	get_current_screen()->add_help_tab( array(
			'id'      => 'homepage-sections',
			'title'   => 'Homepage Sections',
			'content' => '<p><img src="' . get_stylesheet_directory_uri() . '/images/homepage-help.jpg" /></p>',
		) );
}
add_action( 'add_meta_boxes', 'be_homepage_help', 10, 2 );