Sorry, that is not the correct way.
Do not create a new cfg in the
mods folder!
1. Navigate to
your game's folder \data\sea\ that is where you'll find your EnglishNames.cfg
2. Open that file (back it up, first!) with notepad.
3. Copy those entries you
want to add and paste them
into your existing .cfg at the end of it.
4. Save that file and you are fine.