message: add asset docs
diff: @@ -40,3 +40,25 @@ new StylableWebpackPlugin({
  createRuntimeChunk: true
  })
  ```
  +
  +CSS Assets Are handled by `url-loader` + `file-loader`
  +
  +```js
  + module: {
  + rules: [
  + {
  + test: /\.(png|jpg|gif)$/,
  + use: [
  + {
  + loader: "url-loader",
  + options: {
  + limit: 8192
  + }
  + }
  + ]
  + }
  + ]
  + }
  +```
  +
  +**IF YOU USING CSS_LOADER/EXTRACT MAKE SURE TO EXCLUDE `.st.css` FILE FROM THE PROCESS**
  \ No newline at end of file
  