Update plugins/hentai.js

plugins/hentai.js

@@ -9,6 +9,13 @@ const HentaiRoutes = express.Router();
  * /api/v1/hentai-anime:
  *   get:
  *     summary: Hentai Anime Random
+ *     parameters:
+ *       - in: header
+ *         name: x-api-key
+ *         required: true
+ *         description: API key for authentication
+ *         schema:
+ *           type: string
  *     responses:
  *       200:
  *         description: Success