doc: use more explicit notation to avoid confusion
doc: use more explicit notation to avoid confusion

jleben/isl,pierrotdelalune/isl,tobig/isl,epowers/isl,cfx-next/toolchain_isl-upstream,nicolasvasilache/isl,BenzoSM/isl,PollyLabs/isl,serge-sans-paille/isl,crossbuild/isl,Meinersbur/isl,KangDroidSMProject/ISL,SaberMod/isl-current,Meinersbur/isl,pierrotdelalune/isl,SaberMod/isl-current,VanirLLVM/toolchain_isl,inducer/isl-mirror,Meinersbur/isl,Distrotech/isl,abduld/isl,nicolasvasilache/isl,jleben/isl,Meinersbur/isl,BenzoSM/isl,VanirLLVM/toolchain_isl,evaautomation/isl,tobig/isl,abduld/isl,BobSaget-Mod/libisl,epowers/isl,PollyLabs/isl,crossbuild/isl,cfx-next/toolchain_isl-upstream,BenzoSM/isl,abduld/isl,UBERTC/isl,UBERTC/isl,Distrotech/isl,serge-sans-paille/isl,pierrotdelalune/isl,nicolasvasilache/isl,VanirLLVM/toolchain_isl,evaautomation/isl,pierrotdelalune/isl,simbuerg/isl,KangDroidSMProject/ISL,BobSaget-Mod/libisl,serge-sans-paille/isl,crossbuild/isl,serge-sans-paille/isl,inducer/isl-mirror,KangDroidSMProject/ISL,evaautomation/isl,simbuerg/isl,epowers/isl,cfx-next/toolchain_isl-upstream,KangDroidSMProject/ISL,PollyLabs/isl,UBERTC/isl,simbuerg/isl,pierrotdelalune/isl,tobig/isl,nicolasvasilache/isl,VanirLLVM/toolchain_isl,jleben/isl,BenzoSM/isl,abduld/isl,jleben/isl,cfx-next/toolchain_isl-upstream,evaautomation/isl,nicolasvasilache/isl,epowers/isl,jleben/isl,SaberMod/isl-current,VanirLLVM/toolchain_isl,Distrotech/isl,PollyLabs/isl,PollyLabs/isl,simbuerg/isl,crossbuild/isl,Distrotech/isl,BenzoSM/isl,KangDroidSMProject/ISL,UBERTC/isl,serge-sans-paille/isl,BobSaget-Mod/libisl,BobSaget-Mod/libisl,Distrotech/isl,tobig/isl,inducer/isl-mirror,inducer/isl-mirror,SaberMod/isl-current,inducer/isl-mirror,epowers/isl,cfx-next/toolchain_isl-upstream,BobSaget-Mod/libisl,simbuerg/isl