Adding Pi-hole to DNS Resolvers section

[nigiriemoji]

Hi, although not DNS resolver itself, Pi-hole is an open source DNS sinkhole that is capable of blocking ads and whatever else you want. It supports any DNS provider listed on PrivacyGuides. It's commonly ran on a Raspberry Pi, but it works on various Linux flavors and you can throw it into a docker container pretty easily. Would this be a good addition to the site? Thanks

https://github.com/pi-hole/pi-hole

[dngray]

That is a good point actually, not sure how we overlooked this, it's generally my go-to solution for people wanting to ad filter on controlled platforms like smarttvs etc.

[flexagoon]

If PiHole will be listed, maybe consider listing AdGuard Home as well?

[ghost]

Added with #1314