About the publication workflow I see in the live demo

I am seeing a “PUBLICATION WORKFLOW” section on the right side of the content editor at the strapi live demo, especially at the “Article” collection type. I can’t find any setting in the admin panel regarding this and also can’t find any related plugins in the marketplace. I try to create a starter project myself but can’t see the publication workflow too. Did I miss something here? Or is it a admin panel customisation only in the live demo? Can someone point me a bit about this?