doc: Fix typo in changes.src
doc: Fix typo in changes.src

Reported-by: Frank Kotler <576e266b023e5671b20b0df7a79abc544fa7199a@zytor.com>
Signed-off-by: Cyrill Gorcunov <7a1ea01eee6961eb1e372e3508c2670446d086f4@gmail.com>

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