doc(): update webpack v2 part (#186)

Author: kud

README.md

@@ -57,7 +57,12 @@ module.exports = {
         test: /\.css$/,
         use: [
           'style-loader',
-          'css-loader?importLoaders=1',
+          {
+            loader: 'css-loader',
+            options: {
+              importLoaders: 1
+            }
+          },
           'postcss-loader'
         ]
       }