My functions.php looks like this:
<?php
add_action( 'wp_enqueue_scripts', 'my_theme_enqueue_styles' );
function my_theme_enqueue_styles() {
wp_enqueue_style( 'parent-style', get_template_directory_uri() . '/style.css' );
}
?>
I put your code in at line 6 and it does add what I want, however it doesn’t remove the existing “Powered by WordPress and Wellington”. It’s still there in addition to my modified text.