docs(aio): update migrated content from anguar.io

aio/content/examples/webpack/config/webpack.dev.js

@@ -0,0 +1,26 @@
+// #docregion
+var webpackMerge = require('webpack-merge');
+var ExtractTextPlugin = require('extract-text-webpack-plugin');
+var commonConfig = require('./webpack.common.js');
+var helpers = require('./helpers');
+
+module.exports = webpackMerge(commonConfig, {
+  devtool: 'cheap-module-eval-source-map',
+  
+  output: {
+    path: helpers.root('dist'),
+    publicPath: 'http://localhost:8080/',
+    filename: '[name].js',
+    chunkFilename: '[id].chunk.js'
+  },
+  
+  plugins: [
+    new ExtractTextPlugin('[name].css')
+  ],
+  
+  devServer: {
+    historyApiFallback: true,
+    stats: 'minimal'
+  }
+});
+// #enddocregion