We will prefer stv0g’s repository..
Lack of spaces is important! In any path, try to ensure absence of spaces.
Board Repository through Vivado:Tools/Settings/Tool_Settings/Vivado_Store/Board_Repository:

$ set_param board.repoPaths /path/to/stv0g\'s/zturn-stuff at the TCL command line.More boards at XilinxBoardStore