Update README (#49)

* Rename README_EN

* Fix some markdownlint warnings

* Change multi language support style

* Fix some typo in Chinese translation

* Fix README translation anchor links typo

* Update README translation and fix some typo

* Fix README translation anchor color

* Fix README_EN typo

add daemon support for docker

Add provider option support

Update README.md

Update README.md

Update mtproxy.sh

增加获取备用公网IP接口

Update mtproxy.sh

增加获取备用公网IP接口