Add documentation for other env vars used by Rakudo
Add documentation for other env vars used by Rakudo

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