Provide a [ref] link next to group titles in HTML guide
Provide a [ref] link next to group titles in HTML guide

This way users can right click and copy link. This link will go to that
XCCDF group. This is a very practical way to reference XCCDF groups.

jan-cerny/openscap,OpenSCAP/openscap,redhatrises/openscap,OpenSCAP/openscap,redhatrises/openscap,Hexadorsimal/openscap,OpenSCAP/openscap,Hexadorsimal/openscap,redhatrises/openscap,mpreisler/openscap,mpreisler/openscap,Hexadorsimal/openscap,redhatrises/openscap,mpreisler/openscap,mpreisler/openscap,Hexadorsimal/openscap,redhatrises/openscap,OpenSCAP/openscap,jan-cerny/openscap,Hexadorsimal/openscap,jan-cerny/openscap,OpenSCAP/openscap,redhatrises/openscap,jan-cerny/openscap,mpreisler/openscap,jan-cerny/openscap,OpenSCAP/openscap,jan-cerny/openscap,Hexadorsimal/openscap,mpreisler/openscap