* Extend docs for routed setup with nftables
When using nftables in a routed setup different up and down hooks need to be used.
To limit interaction with docker managed chains a custom WG_EASY chain is added as a jump target.
Since nft only supports deletion via handles awk is needed to get the handle of the jump rule for deletion
* Remove link to podman-nft
* Fix formatting according to prettier rules
* Add additional whitespace