chore: fix doc

ota-meshi · ota-meshi · commit bb29e9690ac1 · 2025-09-04T11:34:31.000+09:00
diff --git a/docs/rules/no-unused-selector.md b/docs/rules/no-unused-selector.md
@@ -183,6 +183,8 @@ export default {
 </script>
 ```
 
+</eslint-code-block>
+
 ## :books: Further reading
 
 - [vue-scoped-css/require-selector-used-inside]
