docs: migrate to @nuxthq/ui-kit (#405)

Co-authored-by: Sébastien Chopin <seb@nuxt.com>

docs/content/2.elements/5.accordion.md

@@ -1,9 +1,12 @@
 ---
-github: true
 description: Display togglable accordion panels.
-headlessui:
-  label: 'Disclosure'
-  to: 'https://headlessui.com/vue/disclosure'
+links:
+  - label: GitHub
+    icon: i-simple-icons-github
+    to: https://github.com/nuxtlabs/ui/blob/dev/src/runtime/components/elements/Accordion.vue
+  - label: Disclosure
+    icon: i-simple-icons-headlessui
+    to: 'https://headlessui.com/vue/disclosure'
 navigation:
   badge: 'Edge'
 ---