Hi there,
Tom’s link should take you to function that he updated, if not here is his updated code:
add_action( 'after_setup_theme', function() {
add_theme_support( 'responsive-embeds' );
add_theme_support( 'post-formats', array( 'aside', 'image', 'video', 'quote', 'link', 'status', 'audio' ) );
}, 100 );