Remind players to move their LocalData.sav file from their old savegame directory to the new one

[richardhendricks]

Not sure it belongs here per se, but it would be nice to have a reminder/tip on how to move the players' LocalData.sav file from their old savegame location to the new savegame location (not the server side, this is on the client side). This way their explored map data is preserved when they move the save game from coop to dedicated, for example.