ets规范整改

issue: https://gitee.com/openharmony/docs/issues/I7XTYYSigned-off-by: Nhunili <lihucheng2@huawei.com>

zh-cn/application-dev/reference/apis/js-apis-inner-application-continuableInfo.md

@@ -24,7 +24,7 @@ import distributedMissionManager from '@ohos.distributedMissionManager';
 
 **示例：**
 
-```js
+```ts
 import distributedMissionManager from '@ohos.distributedMissionManager';
 
 try {