Update README_CN.md

Merge pull request Qihoo360#273 from wangyupeng1-iri/master

Release 2.1.7

Sample upgraded to 2.1.6

Merge pull request Qihoo360#206 from wangyupeng1-iri/master

Upgraded to 2.1.5

Upgrade the replugin-host-lib version to v.2.1.4

Upgrade the replugin-host-lib version to v.2.1.4

Merge pull request Qihoo360#162 from wangyupeng1-iri/master

Use the replugin-plugin-gradle  v.2.1.4