Update webpack post

src/pages/blog/2018-04-02-webpack-3-to-4.md

@@ -13,7 +13,7 @@ I recently moved a large project from webpack 3 to 4, and the documentation is v
 
 ## Upgrade node to 8.9.4
 
-To get the best performance out of v4, [@wSokra says](https://twitter.com/wSokra/status/967852475918274561) use node 8.9.4.
+To get the best performance out of v4, [@wSokra says](https://twitter.com/wSokra/status/967852475918274561) use at least node 8.9.4.
 
 ## Upgrade webpack
 
@@ -31,11 +31,11 @@ You have to choose a mode:
 mode: "production",
 ```
 
-## Get rid of webpack.optimize.CommonsChunkPlugin
+## Change CommonsChunkPlugin to splitChunks
 
 `Error: webpack.optimize.CommonsChunkPlugin has been removed, please use config.optimization.splitChunks instead.`
 
-We used `runtime` and `vendor` chunks in v3 like so:
+We used runtime and vendor chunks in v3 like so:
 
 ```javascript
 plugins: [
@@ -71,15 +71,15 @@ optimization: {
 
 More info about the new `optimization.splitChunks` option can be found [here](https://gist.github.com/sokra/1522d586b8e5c0f5072d7565c2bee693).
 
-## Get rid of webpack.optimize.ModuleConcatenationPlugin
+## Get rid of ModuleConcatenationPlugin
 
-It is now on by default in `production` mode.
+It is now on by default in production mode.
 
-## Change webpack.optimize.UglifyJsPlugin
+## Change UglifyJsPlugin
 
 `Error: webpack.optimize.UglifyJsPlugin has been removed, please use config.optimization.minimize instead.`
 
-v4 now handles dead code elimination internally. Both it and minimization are on by default in `production` mode, but to continue tuning Uglify settings, add [uglifyjs-webpack-plugin](https://www.npmjs.com/package/uglifyjs-webpack-plugin):
+v4 now handles dead code elimination internally. Both it and minimization are on by default in production mode, but to continue tuning Uglify settings, add [uglifyjs-webpack-plugin](https://www.npmjs.com/package/uglifyjs-webpack-plugin):
 
 ```bash
 yarn add -D uglifyjs-webpack-plugin