Update independent-routines.pod6
Update independent-routines.pod6

Closes https://github.com/Raku/doc/issues/3730
Closes https://github.com/rakudo/rakudo/issues/4061
tbrowder/doc,MasterDuke17/doc,tbrowder/doc,tbrowder/doc,tbrowder/doc,MasterDuke17/doc,MasterDuke17/doc,MasterDuke17/doc