nasmdoc: clarify __float*__ example
nasmdoc: clarify __float*__ example

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