message: init umi-plugin-remax readme
diff: -# `umi-plugin-remax`
  +# umi-plugin-remax
  -> TODO: description
  +umi plugin for [remax](https://remaxjs.org/).
  ## Usage
  -```
  -const umiPluginRemax = require('umi-plugin-remax');
  -
  -// TODO: DEMONSTRATE API
  +```js
  +// config in your umi project (.umirc.js or config/config.js)
  +export default {
  + routes: [{
  + path: 'pages/a',
  + }, {
  + path: 'pages/b',
  + }],
  + plugins: ['umi-plugin-remax', {
  + // same with remax.config.js in remax
  + cssModules: true,
  + app: {
  + // same with app.config.js in remax
  + defaultTitle: 'alipay mini app',
  + },
  + }]
  +};
  ```
  