[README] tweak the build and install instructions
[README] tweak the build and install instructions

ab5tract/rakudo,skids/rakudo,softmoth/rakudo,laben/rakudo,raydiak/rakudo,cygx/rakudo,b2gills/rakudo,LLFourn/rakudo,tony-o/deb-rakudodaily,azawawi/rakudo,cygx/rakudo,salortiz/rakudo,zhuomingliang/rakudo,azawawi/rakudo,cygx/rakudo,tony-o/deb-rakudodaily,Gnouc/rakudo,Gnouc/rakudo,awwaiid/rakudo,jonathanstowe/rakudo,zostay/rakudo,tony-o/rakudo,ugexe/rakudo,cognominal/rakudo,nunorc/rakudo,paultcochrane/rakudo,retupmoca/rakudo,rakudo/rakudo,nbrown/rakudo,tbrowder/rakudo,raydiak/rakudo,tony-o/deb-rakudodaily,raydiak/rakudo,azawawi/rakudo,softmoth/rakudo,MasterDuke17/rakudo,pmurias/rakudo,LLFourn/rakudo,Leont/rakudo,b2gills/rakudo,ungrim97/rakudo,niner/rakudo,MasterDuke17/rakudo,zostay/rakudo,retupmoca/rakudo,nunorc/rakudo,Leont/rakudo,Leont/rakudo,jonathanstowe/rakudo,samcv/rakudo,sjn/rakudo,labster/rakudo,sergot/rakudo,samcv/rakudo,rakudo/rakudo,azawawi/rakudo,tony-o/rakudo,retupmoca/rakudo,teodozjan/rakudo,labster/rakudo,pmurias/rakudo,niner/rakudo,Leont/rakudo,salortiz/rakudo,ab5tract/rakudo,softmoth/rakudo,paultcochrane/rakudo,usev6/rakudo,ab5tract/rakudo,paultcochrane/rakudo,tbrowder/rakudo,dankogai/rakudo,tony-o/deb-rakudodaily,pmurias/rakudo,sjn/rakudo,lucasbuchala/rakudo,MasterDuke17/rakudo,teodozjan/rakudo,cognominal/rakudo,Gnouc/rakudo,sergot/rakudo,zhuomingliang/rakudo,sjn/rakudo,LLFourn/rakudo,tony-o/deb-rakudodaily,laben/rakudo,nbrown/rakudo,zhuomingliang/rakudo,teodozjan/rakudo,salortiz/rakudo,dankogai/rakudo,nbrown/rakudo,dwarring/rakudo,rjbs/rakudo,salortiz/rakudo,labster/rakudo,niner/rakudo,ugexe/rakudo,ab5tract/rakudo,skids/rakudo,nunorc/rakudo,rakudo/rakudo,b2gills/rakudo,tony-o/rakudo,awwaiid/rakudo,zostay/rakudo,tony-o/rakudo,softmoth/rakudo,samcv/rakudo,paultcochrane/rakudo,laben/rakudo,lucasbuchala/rakudo,dwarring/rakudo,awwaiid/rakudo,rjbs/rakudo,cygx/rakudo,dwarring/rakudo,ugexe/rakudo,skids/rakudo,sjn/rakudo,Gnouc/rakudo,tbrowder/rakudo,MasterDuke17/rakudo,usev6/rakudo,tbrowder/rakudo,Gnouc/rakudo,awwaiid/rakudo,LLFourn/rakudo,MasterDuke17/rakudo,tony-o/rakudo,tony-o/rakudo,dankogai/rakudo,awwaiid/rakudo,nbrown/rakudo,cognominal/rakudo,lucasbuchala/rakudo,jonathanstowe/rakudo,cygx/rakudo,teodozjan/rakudo,azawawi/rakudo,LLFourn/rakudo,skids/rakudo,skids/rakudo,b2gills/rakudo,MasterDuke17/rakudo,dankogai/rakudo,usev6/rakudo,zhuomingliang/rakudo,lucasbuchala/rakudo,dankogai/rakudo,paultcochrane/rakudo,lucasbuchala/rakudo,tbrowder/rakudo,ungrim97/rakudo,ungrim97/rakudo,laben/rakudo,tony-o/deb-rakudodaily,usev6/rakudo,ugexe/rakudo,ab5tract/rakudo,tony-o/deb-rakudodaily,ugexe/rakudo,softmoth/rakudo,nbrown/rakudo,usev6/rakudo,niner/rakudo,ungrim97/rakudo,rakudo/rakudo,raydiak/rakudo,labster/rakudo,labster/rakudo,cognominal/rakudo,salortiz/rakudo,sergot/rakudo,rakudo/rakudo,retupmoca/rakudo,tbrowder/rakudo,sjn/rakudo,sergot/rakudo,salortiz/rakudo,pmurias/rakudo,labster/rakudo,ungrim97/rakudo,b2gills/rakudo,zostay/rakudo,jonathanstowe/rakudo,Gnouc/rakudo,jonathanstowe/rakudo,rjbs/rakudo,rakudo/rakudo,samcv/rakudo,cognominal/rakudo,nunorc/rakudo,dwarring/rakudo,nbrown/rakudo,samcv/rakudo