Update customize-theme.zh-CN.md with link to antd-scss-theme-plugin article

This article describes how to install the use the `antd-scss-theme-plugin` for Webpack, and how doing so allows you to: 1) customize Ant Design's variables from an SCSS theme file, 2) use compiled Ant Design variables in other SCSS theme files in your project, and 3) enable hot-reloading of Ant Design styles.

docs/react/customize-theme.zh-CN.md

@@ -63,6 +63,7 @@ antd 的样式使用了 [Less](http://lesscss.org/) 作为开发语言，并定
 
 ## 社区教程
 
+- [Using Ant Design in Sass-Styled Webpack Projects with `antd-scss-theme-plugin`](https://intoli.com/blog/antd-scss-theme-plugin/)
 - [How to Customize Ant Design with React & Webpack… the Missing Guide](https://medium.com/@GeoffMiller/how-to-customize-ant-design-with-react-webpack-the-missing-guide-c6430f2db10f)
 - [Theming Ant Design with Sass and Webpack](https://gist.github.com/Kruemelkatze/057f01b8e15216ae707dc7e6c9061ef7)
 - [Using Sass/Scss with React App (create-react-app)](https://medium.com/@mzohaib.qc/using-sass-scss-with-react-app-create-react-app-d03072083ef8)