latest downgrade to 8.4.2

Author: haxqer

README.md

@@ -3,8 +3,9 @@
 
 default port: 8090
 
-+ Long Term Support Version: v8(7.19.14)
-+ Latest Chinese Version: [v8](https://github.com/haxqer/confluence/tree/latest-zh) (Thanks to: [sunny1025g](https://github.com/sunny1025g) for the `zh` image. [#issues/16](https://github.com/haxqer/confluence/issues/16) )
++ Long Term Support Version: v7(7.19.14)
++ Latest Version: v8(8.4.2)
++ Latest Chinese Version: [v7](https://github.com/haxqer/confluence/tree/latest-zh) (Thanks to: [sunny1025g](https://github.com/sunny1025g) for the `zh` image. [#issues/16](https://github.com/haxqer/confluence/issues/16) )
 
 ## Requirement
 - docker-compose: 17.09.0+

README_zh.md

@@ -4,7 +4,8 @@
 
 默认端口: 8090
 
-+ 长期维护的版本: v8(7.19.14)
++ 长期维护的版本: v7(7.19.14)
++ 最新版本: v8(8.4.2)
 + 最新的修复中文乱码问题的版本: [v8](https://github.com/haxqer/confluence/tree/latest-zh) (感谢: [sunny1025g](https://github.com/sunny1025g) for the `zh` image. [#issues/16](https://github.com/haxqer/confluence/issues/16) )
 
 ## 环境要求