APIリファレンスのカテゴリ処理の修正 (#6218)

* APIリファレンスのカテゴリ処理の修正

* tune

src/server/api/endpoints/admin/promo/create.ts

@@ -6,6 +6,8 @@ import { getNote } from '../../../common/getters';
 import { PromoNotes } from '../../../../../models';
 
 export const meta = {
+	tags: ['admin'],
+
 	requireCredential: true as const,
 	requireModerator: true,