The documentation that I linked does provide you with concrete examples for localization configuration inis. You should in fact probably start by copying the Game.ini file contents in that documentation.
You can also look at how the editor itself is configured to be localized.
You’ll find additional ini files under “Engine\Config\Localization”. All of those ini files are example localization gather configurations.
You’ll find the gathered results under “Engine\Content\Localization”.