feat: add nix-topology

Author: IogaMaster

README.md

@@ -246,6 +246,7 @@
 * [Simple Nixos Mailserver](https://gitlab.com/simple-nixos-mailserver/nixos-mailserver) - A complete mailserver, managed with NixOS modules.
 * [Stylix](https://github.com/danth/stylix) - System-wide colorscheming and typography for NixOS.
 * [nix-bitcoin](https://github.com/fort-nix/nix-bitcoin) - Modules and packages for Bitcoin nodes with higher-layer protocols with an emphasis on security.
+* [nix-topology](https://github.com/oddlama/nix-topology) - Generate infrastructure and network diagrams directly from your NixOS configuration.
 
 ## NixOS Configuration Editors