updated documentation

.gitea/workflows/check-nixos.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Evaluate all NixOS hosts
         run: |
           set -euo pipefail
-          for host in nixos docker kuma server nix-cache nix-minimal; do
+          for host in nixos docker kuma server nix-cache nix-minimal pxe-boot; do
             echo "Evaluating ${host}"
             nix --extra-experimental-features 'nix-command flakes' eval \
               ".#nixosConfigurations.${host}.config.system.build.toplevel.drvPath" --raw