我想让用户可以轻松编辑短代码，如何修改此短代码：

add_shortcode( \'show_news\', \'news_query\' );

function news_query() {
    $args = array(
        \'posts_per_page\' => 3,
        \'category_name\' => \'news\',
    );
    $news_query = new WP_Query( $args );
    if ( $news_query->have_posts() ) :
        $html_out = \'<article>\';
        while ( $news_query->have_posts() ) :
            $news_query->the_post();
            // Do stuff with each post here
            $html_out .= \'<div class="news-item"><div class="meta-date">\' . Date(\'m/y\') . \'</div><div class="meta-info"><div class="meta-title"><h4><a href="\' . get_permalink() . \'">\' . get_the_title() . \'</a></h4></div><div class="meta-excerpt">\' . get_the_excerpt() . \'</div></div></div>\';
        endwhile;
        $html_out .= \'</article>\';
    else : // No results
        $html_out = "Nothing to show";
    endif;
    wp_reset_query();
    return $html_out;
}

这样它就可以使用这个短代码[最近发布的文章类型=“news”posts\\u per\\u page=“3”]

add_shortcode( \'wpse232385_show_news\', \'wpse232385_news_query\' );

function wpse232385_news_query ($atts) {
$news_atts = shortcode_atts( 
    array(
      \'posts_per_page\' => 3,
      \'category_name\' => \'news\' ),
    $atts );
$args = array(
    \'posts_per_page\' => $news_atts[\'posts_per_page\'],
    \'category_name\' => $news_atts[\'category_name\'],
);
$news_query = new WP_Query( $args );
...
}