WooCommerce: Change add to cart text and link to redirect to single product page

gistfile1.txt

add_filter( 'woocommerce_loop_add_to_cart_link', 'change_add_to_cart_loop' );

function change_add_to_cart_loop( $product ) {
    global $product; // this may not be necessary as it should have pulled the object in already

    return '<a href="' . esc_url( $product->get_permalink( $product->id ) ) . '">LEARN MORE</a>';
}