Add DMARC_BUILDER

[juliusrickert]

Fixes #1022.

[tlimoncelli]

Please rebase (i.e. get merge master) and go generate

[tlimoncelli]

I'm super looking forward to trying this out!

I'm going to merge this so I can try it out at Stack Overflow easier. I won't close this until later.

[kmutahar]

Shouldn't this be DMARC builder?

[juliusrickert]

Yes, you are right. I thought I had corrected it, but apparently, I did not.

[kmutahar]

It happens.

Does this mean that after it is fixed the doc should be live on the site?

[tlimoncelli]

Thanks for pointing this out!

The docs are based on master. I fixed this in master 1 minute ago, so the docs should update soon.

For future references, if you search https://stackexchange.github.io/dnscontrol/js for the word dmarc_ you'll have found the docs, just in the wrong place.