Fix doc bug related to how to explicitly capture whitespace using <ws>.
Fix doc bug related to how to explicitly capture whitespace using <ws>.

perl6/doc,MasterDuke17/doc,MasterDuke17/doc,perl6/doc,perl6/doc,tbrowder/doc,perl6/doc,tbrowder/doc,MasterDuke17/doc,tbrowder/doc,tbrowder/doc,perl6/doc,MasterDuke17/doc