fix(docs): use correct description property

packages/backend/src/server/api/endpoints/notifications/read.ts

@@ -2,17 +2,14 @@ import define from '../../define.js';
 import { readNotification } from '../../common/read-notification.js';
 
 export const meta = {
-	desc: {
-		'ja-JP': '通知を既読にします。',
-		'en-US': 'Mark a notification as read.',
-	},
-
 	tags: ['notifications', 'account'],
 
 	requireCredential: true,
 
 	kind: 'write:notifications',
 
+	description: 'Mark a notification as read.',
+
 	errors: {
 		noSuchNotification: {
 			message: 'No such notification.',