Bug#931890: (no subject)

[Jorge]

See "Using your current Debian kernel configuration as a starting point" 
from https://wiki.debian.org/BuildADebianKernelPackage

I've updated that section accordingly 
(https://salsa.debian.org/hertzog/debian-handbook/commit/3d34c50e4354d6de5b7a8d07cf3033f3860dddad).