doc: Makefile fixes missing from previous checkin
doc: Makefile fixes missing from previous checkin

projedi/nasm,techkey/nasm,techkey/nasm,letolabs/nasm,turingstudio/nasm,Distrotech/nasm,projedi/nasm,turingstudio/nasm,Distrotech/nasm,techkey/nasm,techkey/nasm,letolabs/nasm,projedi/nasm,turingstudio/nasm,projedi/nasm,letolabs/nasm,techkey/nasm,turingstudio/nasm,Distrotech/nasm,projedi/nasm,Distrotech/nasm