Merge pull request #1078 from redian/master

Update production-build.md (#1)

Author: simon04

content/guides/production-build.md

@@ -10,6 +10,7 @@ contributors:
   - chrisVillanueva
   - swapnilmishra
   - bring2dip
+  - redian
 ---
 
 This page explains how to generate production builds with webpack.
@@ -144,8 +145,8 @@ And from our package.json, where we build our application using webpack, the com
  "build:dist": "webpack --env=prod --progress --profile --colors",
 ```
 
-You could see that we passed the environment variable to our webpack.config.js file. From there we used a simple
-switch-case to build for the environment we passed by simply loading the right js file.
+You can see that we passed the environment variable to our webpack.config.js file. 
+The environment variable is then passed to `buildConfig` method which simply loads the right js file for the build.
 
 An advanced approach would be to have a base configuration file, put in all common functionalities,
 and then have environment specific files and simply use 'webpack-merge' to merge them. This would help to avoid code repetitions.