Update README-eng.md

README-eng.md

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 # Mirai
-[![Codacy Badge](https://api.codacy.com/project/badge/Grade/7d0ec3ea244b424f93a6f59038a9deeb)](https://www.codacy.com/manual/Him188/mirai?utm_source=github.com&utm_medium=referral&utm_content=mamoe/mirai&utm_campaign=Badge_Grade)  
 
 Mirai is a high-performance multi-platform library, as well as a framework, providing protocol support for Tencent QQ.