fix：更新README.md

[lrst6963]

No description provided.

[gemini-code-assist]

Summary of Changes

Hello @lrst6963, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

此拉取请求更新了 README.md 文件，在说明部分添加了一张图片。这旨在增强项目主文档中提供的视觉信息。

Highlights

• README.md 更新: 在 "说明" 部分添加了一个新的图片链接 ![提示](/screenshots/gitcodes.png)。

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[gemini-code-assist]

Code Review

本次 PR 更新了 README.md 文件，在 说明 部分添加了一张图片。我注意到图片的替代文本（alt text）可以更具描述性，以提高可访问性。请参考我的具体评论。

[gemini-code-assist]

为了提高可访问性，建议为图片提供更具描述性的替代文本（alt text）。当前的 提示 过于通用，无法有效传达图片信息给使用屏幕阅读器的用户。请根据图片内容修改为更具体的描述。例如，如果图片是关于许可证的警告，可以考虑使用类似 许可证重要提示 的文本。

Suggested change

	
	

[Copilot]

Pull request overview

This PR adds a new informational image to the README.md file. The change inserts an image reference immediately after the "## 说明" (Description) section heading and before the important license warning section.

Key changes:

• Added a new PNG image file screenshots/gitcodes.png
• Inserted an image reference line in README.md at line 21

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.

File	Description
screenshots/gitcodes.png	New image file added to the screenshots directory (binary PNG file)
README.md	Added image reference line displaying the gitcodes.png image in the description section

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