Update README_en.md

Fix LaTeX formatting in README.md

Merge pull request #2 from ysnlly/codex/rewrite-readme-for-clarity-and-professionalism

docs: simplify README to startup method results only

Merge pull request #1 from ysnlly/codex/add-multi-language-support-to-readme

docs: add latest benchmark table and bilingual README switcher

Fix validate compatibility with Qwen2.5 models

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