doc: Add missing language to fenced code blocks
@@ -30,10 +30,12 @@ Generating a partitions listing
By adding this to `local.nix`, build an initramfs for your device and boot it.
-```
+```nix
+{
mobile.boot.stage-1.extraUtils = with pkgs; [
gptfdisk
];
+}
```
Run this command:
