docs: add explanation about layout usage in error.vue

docs/2.guide/2.directory-structure/3.error.md

@@ -23,7 +23,7 @@ const props = defineProps({
 ```
 
 ::callout
-Although it is called an 'error page' it's not a route and shouldn't be placed in your `~/pages` directory. For the same reason, you shouldn't use `definePageMeta` within this page.
+Although it is called an 'error page' it's not a route and shouldn't be placed in your `~/pages` directory. For the same reason, you shouldn't use `definePageMeta` within this page. That being said, you can still use layouts in the error file, by utilizing the [`NuxtLayout`](/docs/api/components/nuxt-layout) component and specifying the name of the layout.
 ::
 
 The error page has a single prop - `error` which contains an error for you to handle.