Fix typo in WMTS number of zoom levels.
Fix typo in WMTS number of zoom levels.

altinukshini/lokalizo,dracos/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet,rbgdigital/fixmystreet,dracos/fixmystreet,rbgdigital/fixmystreet,rbgdigital/fixmystreet,rbgdigital/fixmystreet,altinukshini/lokalizo,dracos/fixmystreet,mhalden/fixmystreet,mhalden/fixmystreet,rbgdigital/fixmystreet,dracos/fixmystreet,rbgdigital/fixmystreet,dracos/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet,dracos/fixmystreet,altinukshini/lokalizo,mhalden/fixmystreet