[Tails-dev] [review] Fixes in the documentation

Hi,

please review, in elouann / documentation, the following commits:

* 80ff5af - Fix link 000-resolv-conf → 0000-resolv-conf Will-fix: #10855
* af19a86 - Fix link /etc/firewall.conf → /etc/ferm/ferm.conf

Thank you,
cheers