Using Nix outside of NixOS

update nixpkgs

Update versions of the following files.

Name		Name	Last commit message	Last commit date
Latest commit History 5 Commits
01-install-nix.sh		01-install-nix.sh
02-install-nixpkgs.sh		02-install-nixpkgs.sh
03-install-home-manager.sh		03-install-home-manager.sh
04-change-shell.sh		04-change-shell.sh
README.md		README.md
VERSION.sh		VERSION.sh
flake.lock		flake.lock
flake.nix		flake.nix
home.nix		home.nix
update.sh		update.sh