hetzner: update projects and infra acces

doc/hetzner.md

@@ -2,14 +2,40 @@
 
 We have multiple Hetzner Robot and Hetzner Cloud accounts/projects.
 
+Both [@infra-build](https://github.com/orgs/NixOS/teams/infra-build) and
+[@foundation](https://github.com/orgs/NixOS/teams/foundation) members have full
+access to the Hetzner account.
+
 ## Hetzner Cloud
 
-### Nixpkgs Security Tracker project
+In the Hetzner Cloud personal Hetzner account holders can be invited into a
+[project](https://docs.hetzner.com/cloud/general/faq/#what-are-projects-and-how-
+can-i-use-them) to grant them access to manage its resources.
+
+### nixos-infra
+
+VM instances used by non-critical infra.
+
+Project members:
+- [@jfly](https://github.com/jfly) member
+- [@mweinelt](https://github.com/mweinelt) member
+- [@vcunat](https://github.com/vcunat) member
+
+### nixos-wiki
+
+The official wiki instance at [https://wiki.nixos.org].
+
+Project members:
+- [@JulienMalka](https://github.com/JulienMalka) admin
+- [@lassulus](https://github.com/lassulus) admin
+- [@Mic92](https://github.com/Mic92) admin
+- [@vcunat](https://github.com/vcunat) admin
+
+### nixpkgs-security-tracker
 
 The [Nixpkgs Security Tracker](https://tracker.security.nixos.org/) runs in a
 Hetzner Cloud project named `nixpkgs-security-tracker` with ID `3668536`.
 
-The project members are:
-- foundation@nixos.org as an owner
-- nixos@dgrig.com (@erethon) as an admin
-- valentin.gagarin@tweag.io (@fricklerhandwerk) as an admin
+Project members:
+- [@erethon](https://github.com/erethon) (nixos@dgrig.com) admin
+- [@fricklerhandwerk](https://github.com/fricklerhandwerk) (valentin.gagarin@tweag.io) admin