Lists are people and organizations that belong on a page together because they share a common thread of power, but aren't part of a formal organization.
Search for the list you want to edit and click its name in the search results.
Start type a name in the text box named add entity
Editing a list allows you to change its name and description and indicate whether it’s ranked. You can also add and remove list members and change their ranking.
Click Edit in the header of the list page
Make changes and click save to finish