docs: add template for doc-driven mode

Author: atinux

docs/content/3.guide/1.writing/7.document-driven.md

@@ -11,7 +11,9 @@ It also offers `page`, `navigation`, `surround` and `globals` variables.
 
 ## Enable the mode
 
-Add the `documentDriven` option in the `nuxt.config`:
+### Existing project
+
+Add the [`documentDriven`](/api/configuration#documentdriven) option in the `nuxt.config`:
 
 ```ts
 import { defineNuxtConfig } from 'nuxt'
@@ -24,6 +26,14 @@ export default defineNuxtConfig({
 })
 ```
 
+### Fresh project
+
+Start with a fresh project with the document driven mode enabled:
+
+```bash
+npx nuxi init my-website -t doc-driven
+```
+
 You can also use an object to configure the behavior of the mode, checkout the [configuration section](/api/configuration#documentdriven).
 
 ## Catch-all page