Install nvd

This allows me to easily see which version updates happen between two
store paths (e.g. after updating)

Fetch store paths via `home-manager generations` and run `nvd diff
<old> <new>`

home/packages.nix

@@ -3,6 +3,7 @@
 with pkgs; [
   nix
   cacert
+  nvd
 
   # System tools
   dmenu

readme.md

@@ -106,8 +106,6 @@ Additions:
 * Integrate https://github.com/Wilfred/difftastic for diffing source code
   https://github.com/nix-community/home-manager/pull/2850
 
-* https://gitlab.com/khumba/nvd
-
 Migration:
 
 * Migrate ssh config (I don't really like to expose customer server names and configs to outer world, how to handle?)