Correct interior quotation marks to single quote
Correct interior quotation marks to single quote

Also, remove apparently spurious right square bracket.

Better interior single quotes could be used with Unicode.
tbrowder/doc,MasterDuke17/doc,tbrowder/doc,perl6/doc,MasterDuke17/doc,MasterDuke17/doc,perl6/doc,perl6/doc,MasterDuke17/doc,tbrowder/doc,perl6/doc,tbrowder/doc,perl6/doc