Multisite support

Hi Skipser,

Thank you for your plugin. The thing I am missing is multisite support, so I’ve added it myself 😉
Is it possible you can add it to the core of the plugin? I’ve changed the following lines in pinterest_badge.php to achieve multisite support.

line 116 in pinterest_badge.php:
$pin->cache_file = WP_CONTENT_DIR . "/cache/pinterestbadges_site" . get_current_blog_id() . ".txt";

and line 296 in pinterest_badge.php:
$cache = WP_CONTENT_DIR . "/cache/pinterestbadges_site" . get_current_blog_id() . ".txt";

It would be great if it can be added to the core of your plugin so that I can install updates in the future.

https://ww.wp.xz.cn/plugins/pinterest-badge/