docs: update content

docs/src/demos/Examples/Formatting/index.vue

@@ -44,7 +44,7 @@
 
 <script>
 import { Editor, EditorContent } from '@tiptap/vue-2'
-import { defaultExtensions } from '@tiptap/starter-kit'
+import StarterKit from '@tiptap/starter-kit'
 import TextAlign from '@tiptap/extension-text-align'
 import Highlight from '@tiptap/extension-highlight'
 
@@ -62,7 +62,7 @@ export default {
   mounted() {
     this.editor = new Editor({
       extensions: [
-        ...defaultExtensions(),
+        StarterKit,
         TextAlign,
         Highlight,
       ],