Add hugo module

modules/hugo.nix

@@ -0,0 +1,13 @@
+{ config, pkgs, ... }:
+
+let
+  myUpdateSite = pkgs.writeShellScriptBin "dotfiles-update-site" ''
+    rsync -aP /etc/dotfiles/docs/public ubuntu@chrishayward.xyz:/var/www/chrishayward
+  '';
+
+in {
+  environment.systemPackages = [
+    pkgs.hugo
+    myUpdateSite
+  ];
+}