If you want the names of City-States that show up in the various UI panels to match the name of their city do the following:

1. Navigate to the mod folder (usually Program Files\Steam\steamapps\workshop\content\289070\1161626651).

2. Open the Core Folder, and then the UserSettingsAltCityStateNames.sql file.

3. On line 11, change the 0 to a 1.

And that's it!