chore: Update NixOS Wiki link (#117)

* Update NixOS wiki link

---------

Co-authored-by: Austin Horstman <khaneliman12@gmail.com>
Co-authored-by: NixOS Wiki <mail@nix.wiki>

README.md

@@ -8,7 +8,7 @@
 <p align="center">
  <a href="https://github.com/khaneliman/khanelinix/stargazers"><img src="https://img.shields.io/github/stars/khaneliman/khanelinix?colorA=363a4f&colorB=b7bdf8&style=for-the-badge"></a>
  <a href="https://github.com/khaneliman/khanelinix/commits"><img src="https://img.shields.io/github/last-commit/khaneliman/khanelinix?colorA=363a4f&colorB=f5a97f&style=for-the-badge"></a>
- <a href="https://nixos.wiki/wiki/Flakes" target="_blank">
+ <a href="https://wiki.nixos.org/wiki/Flakes" target="_blank">
  <img alt="Nix Flakes Ready" src="https://img.shields.io/static/v1?logo=nixos&logoColor=d8dee9&label=Nix%20Flakes&labelColor=5e81ac&message=Ready&color=d8dee9&style=for-the-badge">
 </a>
 <a href="https://github.com/snowfallorg/lib" target="_blank">

modules/nixos/system/networking/default.nix

@@ -207,7 +207,7 @@ in
  };
 
  systemd = {
- # https://nixos.wiki/wiki/Systemd-networkd
+ # https://wiki.nixos.org/wiki/Systemd-networkd
  network = {
  enable = true;