Add including the module to usage

readme.md

@@ -7,6 +7,19 @@ gstreamer plugin. This allows you to use Aja video IO cards on NixOS.
 ## Usage
 
 - Add the flake to your system flake's inputs.
+- Include the nixos module in your config:
+  ```nix
+    ...
+    nixosConfigurations = {
+      mymachine = nixpkgs.lib.nixosSystem {
+        system = "x86_64-linux";
+        modules = [
+          # ... your other modules  ...
+          ajantv2.nixosModules.default
+        ];
+      };
+      ...
+  ```
 - Enable the module by adding the following to your system config:
   ```nix
   ntv2.enable = true;