变更摘要

此 PR 为三个顶级文档文件补充末尾缺失的换行符，使其符合 POSIX 文本文件规范（文件以换行符结尾）。这是一个纯粹的文档格式修正，不涉及任何功能或逻辑变更。

主要改动

• README.md 末尾补充换行符：文件末尾添加缺失的换行符，确保符合 POSIX 行尾规范。
• CONTRIBUTING.md 末尾补充换行符：同样在文件末尾添加换行符，消除文本文件末尾缺失换行符的警告。
• DIRECTORY_STRUCTURE.md 末尾补充换行符：为该文档文件末尾补全换行符，与其他文件保持一致。

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PR Approval Progress

✅ Congratulations! All modules have met the lgtm and approve requirements.

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CLA Signature Pass

gcw_93rlw6ed, thanks for your pull request. All authors of the commits have signed the CLA. 👍

@lushirui22 @rous_zhang @keke_x @songchangxia 您好，PR #805（顶层文档末尾空行修复）已完成前置检查：CLA 通过（cann-cla/yes）、CI 通过、mergeable 无冲突。改动很小（文档末尾空行补充），烦请抽空 review，感谢！

compile

流水线任务触发成功
任务链接 [f175265bba98452f9254f31e0ccc1f44][流水线指导]

[2026-08-06 09:26:54]    CI执行结束

/lgtm

The following users do not have permission to comment /lgtm or /approve on any module in this PR:
rous_zhang

Thanks for your pull-request.
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You can get sig-info at here

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PR Approval Progress

⚠️ This PR does not yet meet the following requirements:lgtm (requires ≥ 2 person(s) per module)、approve (requires ≥ 1 person(s) per module)

Module Approval Details

module	lgtm status	approve status
repo-cann/cann-ops-competitions	❌ (0/2)(You can also ask: Carolina_yuan, 田晓亮, 王艳秋, Albertq, zutao)	❌ (0/1)(You can also ask: jackwangc, zutao, syeren, 傅涛, keloJW)

💡 Tip:

• Committer can comment /approve or /lgtm
• Commenting /approve implies both code review (lgtm) and intent to merge (approve)

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CLA Signature Pass

gcw_93rlw6ed, thanks for your pull request. All authors of the commits have signed the CLA. 👍

@gcw_93rlw6ed 请根据提示，寻求有权限的committer帮助合入

@zutao @Carolina_yuan 您好，PR #805（顶层文档末尾换行符补充）已完成全部前置检查：CLA 通过（cann-cla/yes）、CI 全绿（cocheck_codestyle / anti_virus / Check_Pr / pre_comment 均 SUCCESS）、mergeable 无冲突。改动为纯文档格式修正（README.md / CONTRIBUTING.md / DIRECTORY_STRUCTURE.md 末尾各补 1 个换行符），无任何功能或逻辑变更。烦请抽空 review，若方便请 /lgtm 和 /approve，感谢！

Hi committers @lushirui22 @rous_zhang @keke_x @songchangxia, this PR has been waiting since 08-06 (CI passed, CLA signed). Could you please review? Thanks!

@TianXL @fullt 麻烦帮忙检视一下PR吧

Hi committers @lushirui22 @rous_zhang @keke_x @songchangxia, this PR has been waiting since 08-06 (CI passed, CLA signed). Could you please review? Thanks!

@gcw_93rlw6ed

I have contacted the two committers @TianXL and @fullt via email, and they will handle this PR for you as soon as possible.

/approve

The following users do not have permission to comment /lgtm or /approve on any module in this PR:
rous_zhang

/lgtm

The following users do not have permission to comment /lgtm or /approve on any module in this PR:
rous_zhang