Update NixOS Wiki link (#532)

Update NixOS wiki link

Co-authored-by: NixOS Wiki <[email protected]>

README.md

@@ -23,7 +23,7 @@ For the uninitiated, using Ethereum.nix will give you the following benefits:
 - We aim that every Ethereum application stored in the repository is constructed from its source, including all input dependencies. This approach guarantees the code's reproducibility and trustworthiness. Furthermore, with Nix, expert users can tweak and adjust the build process to any degree of detail as required.
 - We develop custom NixOS modules to streamline operations with applications such as Execution and Consensus clients (including performing backups). Moreover, we aim to introduce further abstractions that simplify everyday tasks, such as running a development environment effortlessly without needing docker.
 
-This project is developed entirely in [Nix Flakes](https://nixos.wiki/wiki/Flakes) (but it offers compatibility with legacy Nix thanks to [`flake-compat`](https://github.com/nix-community/flake-compat)).
+This project is developed entirely in [Nix Flakes](https://wiki.nixos.org/wiki/Flakes) (but it offers compatibility with legacy Nix thanks to [`flake-compat`](https://github.com/nix-community/flake-compat)).
 
 ## Documentation
 

docs/index.md

@@ -2,7 +2,7 @@
 
 ## What is Ethereum.nix?
 
-Ethereum.nix is a collection of [Nix](https://nixos.org) packages and [NixOS](https://nixos.wiki/wiki/NixOS_modules) modules
+Ethereum.nix is a collection of [Nix](https://nixos.org) packages and [NixOS](https://wiki.nixos.org/wiki/NixOS_modules) modules
 designed to make it easier to operate [Ethereum](https://ethereum.org) related services and infrastructure.
 
 For the uninitiated, using Ethereum.nix will give you the following benefits:
@@ -11,7 +11,7 @@ For the uninitiated, using Ethereum.nix will give you the following benefits:
 - We aim that every Ethereum application stored in the repository is constructed from its source, including all input dependencies. This approach guarantees the code's reproducibility and trustworthiness. Furthermore, with Nix, expert users can tweak and adjust the build process to any degree of detail as required.
 - We develop custom NixOS modules to streamline operations with applications such as Execution and Consensus clients (including performing backups). Moreover, we aim to introduce further abstractions that simplify everyday tasks, such as running a production grade Liquid Staking deployment or even a local development environment for running consensus clients and execution clients effortlessly without needing [Docker](https://www.docker.com/) or [Kubernetes](https://kubernetes.io/).
 
-This project is developed entirely in [Nix Flakes](https://nixos.wiki/wiki/Flakes) (but it offers compatibility with legacy Nix thanks to [`flake-compat`](https://github.com/nix-community/flake-compat)).
+This project is developed entirely in [Nix Flakes](https://wiki.nixos.org/wiki/Flakes) (but it offers compatibility with legacy Nix thanks to [`flake-compat`](https://github.com/nix-community/flake-compat)).
 
 ## Eager to use Ethereum.nix?