fix(docs): update links to English README

[hkra0]

Summary by Sourcery

Fix cross-language README links by updating paths to point to the correct English and Chinese Markdown files.

Documentation:

• Update link in readme.md to English README at ./readme_en.md
• Update link in readme_en.md to Chinese README at ./readme.md

[sourcery-ai]

Reviewer's Guide

Adjusts relative paths of cross-linked documentation to correct English and Chinese README references.

File-Level Changes

Change	Details	Files
Update relative links between Chinese and English READMEs	Adjusted English README link in the Chinese README Corrected Chinese README link in the English README	readme.md readme_en.md

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[sourcery-ai]

Hey @AFXR17light - I've reviewed your changes and they look great!

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