optional home.php--to show the posts (blog) page's title and content

functions.php

<?php

add_action( 'edit_form_after_title', 'posts_page_edit_form' );

function posts_page_edit_form( $post ) {

	$posts_page = get_option( 'page_for_posts' );

	if ( $posts_page === $post->ID ) {
		// Running this hook seems to remove the page for posts notice, it's a good idea to keep it
		_wp_posts_page_notice();

		add_post_type_support( 'page', 'editor' );

	}

}