docs: fix broken ENS DoH example

[eth-limo]

This PR adds documentation for using eth.limo as an alternative DoH resolver for eth. domains.

[Jorropo]

@eth-limo thx a lot, this is good, would you be ok with your resolver be a fallback resolver for eth by default ?
(note I'll have to discuss with other maintainers before doing this change)

[eth-limo]

@eth-limo thx a lot, this is good, would you be ok with your resolver be a fallback resolver for eth by default ? (note I'll have to discuss with other maintainers before doing this change)

Yeah absolutely, that sounds good to us.

[lidel]

nit: there is no point in having a separate paragraph about ENS, the point that custom resolvers can be specified per TLD is already made by existing docs.

@eth-limo given the current state of affairs around eth.link, mind replacing the broken https://eth.link/dns-query in the preexisting example with https://dns.eth.limo/dns-query and call it a day?

This is not the first, not the second, and not the third time the eth.link proven to be unreliable. Let's remove it from our docs.

[eth-limo]

nit: there is no point in having a separate paragraph about ENS, the point that custom resolvers can be specified per TLD is already made by existing docs.

@eth-limo given the current state of affairs around eth.link, mind replacing the broken https://eth.link/dns-query in the preexisting example with https://dns.eth.limo/dns-query and call it a day?

This is not the first, not the second, and not the third time the eth.link proven to be unreliable. Let's remove it from our docs.

@lidel thank you for the suggestion. This is complete.

[lidel]

Thanks!