Add link to Wordpress.com Plugin Directory
Add link to Wordpress.com Plugin Directory

This PR makes the package name link to the plugin page on Wordpress.com, eg. `google-sitemap-generator` links to https://wordpress.org/plugins/google-sitemap-generator/
outlandishideas/wpackagist,outlandishideas/wpackagist,wpsvse/wpackagist,wpsvse/wpackagist,outlandishideas/wpackagist,wpsvse/wpackagist,wpsvse/wpackagist