[ci] Fix deployment

[tobil4sk]

Closes #171.

The build is successful: https://tobil4sk.github.io/code-cookbook/

But let's not merge this until we've figured out how to do this with nekovm.org. :sweat_smile:

[kLabz]

I'm still not confident with how this "works" on nekovm.org... :sweat_smile: DNS cache or whatever makes this painful to deal with.

[tobil4sk]

I've opened #179 so that we can merge the build job for now, and we can deal with the deployment here later on.

[kLabz]

I think I want to go ahead with this.. but next Monday, not now :sweat_smile:

[kLabz]

Website seems ok? (and updated) If so, can close #180

[tobil4sk]

Website seems ok? (and updated) If so, can close https://github.com/HaxeFoundation/code-cookbook/pull/180

Looks good, I'll close it