Stub for system page
Stub for system page

With
https://stackoverflow.com/questions/29547490/how-can-i-run-external-programs-using-perl-6-e-g-like-system-in-perl-5
that could be very helpful. Refs #114

jonathanstowe/doc,tbrowder/doc,MasterDuke17/doc,MasterDuke17/doc,perl6/doc,dmaestro/doc,stmuk/doc,perl6/doc,dmaestro/doc,perl6/doc,jonathanstowe/doc,MasterDuke17/doc,MasterDuke17/doc,jonathanstowe/doc,stmuk/doc,stmuk/doc,dmaestro/doc,stmuk/doc,perl6/doc,tbrowder/doc,dmaestro/doc,jonathanstowe/doc,tbrowder/doc,perl6/doc,stmuk/doc,dmaestro/doc,jonathanstowe/doc,tbrowder/doc