Fix broken links in README
Fix broken links in README

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