Deeplink support for the chains

[ligi]

Just when doing this post - I thought it would be nice to be able to deep link to a network on https://chainid.network so users see all details we have about this networkd. Something like https://chainid.network/byID/5

[bmann]

I implemented this as anchors for now. Will need to store chains as separate files if we want this easily.

Edit: this is now live, see https://chainid.network/chains/ -- e.g. https://chainid.network/chains/#ethereum-testnet-g%C3%B6rli-gor-5