Changes style for head3, closes #2324
Changes style for head3, closes #2324

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