Update README_zh.md

Update README_zh.md

Update README_zh.md

release 1.5.5.beta.9

修复微信、qq、钉钉打开选中文件，文件预览正确编码

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Update CHANGES.txt

Merge branch 'master' of https://github.com/indiff/qttabbar

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💚Add language Portuguese of Brazil /添加巴西语言版本

💚Part of Plugins Translated /部分插件已翻译
💚v0.1 German Translation of the file Resources_String.resx /v0.1资源德语翻译
💚Optimize some Chinese Translation /优化部分中文翻译
💚Setting java development tool variables Plugin/优化设置Java开发工具变量插件