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您好，Committer @jiangwensai ，请分配检视人员检视该PR，可以通过命令"assign [@someone_id]"分配检视人员，也可以直接评论"assign"分配给自己进行检视。
Hello, Committer @jiangwensai . Please assign someone to review the PR. You can assign a reviewer by using the command "assign [@someone_id]", or you can comment "assign" to review the PR by yourself.
提交次数已达到或超过3次，为了保证上库效率和减少构建资源浪费，请点击链接观看学习视频，谢谢！https://dcp.openharmony.cn/workbench/video/videoDisplay
IssueNo: https://gitcode.com/openharmony/applications_app_samples/issues/7524
Description:(提交描述)
对 README_zh.md进行格式化修改
Sig: SIG_Sample
Feature or Bugfix:(需求填Feature,缺陷填Bugfix)
Feature
Binary Source:No(涉及则Yes)
No
编译测试结果：(Pass/Fail/评估不涉及)
不涉及
测试用例测试结果：(Pass/Fail/评估不涉及)
不涉及
Signed-off-by: tianlong18@h-partners.com
L0新增用例自检结果