Wordpress Database:
https://www.sitepoint.com/working-with-databases-in-wordpress/
Developer Wordpress
https://developer.wordpress.org/themes/getting-started/what-is-a-theme/
https://developer.wordpress.org/plugins/
Admin Page
https://premium.wpmudev.org/blog/creating-wordpress-admin-pages/?utm_expid=3606929-94.Ie3dH-CaRwe6MU3VrZsdvw.0
