docs: add header

Co-authored-by: Anthony Fu <[email protected]>

Author: basvdijk

docs/content/1.guide/0.getting-started.md

@@ -29,6 +29,8 @@ You can opt-in Nuxt DevTools per-project by going to the project root and run:
 npx nuxi@latest devtools enable
 ```
 
+### Open the DevTools Panel
+
 Restart your Nuxt server and open your app in browser. Click the Nuxt icon on the bottom (or press <kbd>Shift</kbd> + <kbd>Alt</kbd> / <kbd>⇧ Shift</kbd> + <kbd>⌥ Option</kbd> + <kbd>D</kbd>) to toggle the DevTools.
 
 ::callout