fix notification doc

Signed-off-by: NfangJinliang1 <fangjinliang1@huawei.com>
Change-Id: I6b32d743b08c5528c195387bd454c4e5d47db44d
Signed-off-by: NfangJinliang1 <fangjinliang1@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-notification.md

@@ -3058,7 +3058,7 @@ Notification.cancelAsBundle(0, representativeBundle, userId, cancelAsBundleCallb
 
 cancelAsBundle(id: number, representativeBundle: string, userId: number): Promise\<void\>
 
-代理通知（Promise形式）。
+取消代理通知（Promise形式）。
 
 **系统能力**：SystemCapability.Notification.Notification