doc: fix capitalization
doc: fix capitalization

Make the capitalization of "The -t Option" consistent with the other
options.

Signed-off-by: H. Peter Anvin <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>

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