Fix #318. Remove extra webpack.config.js change to path.

lessons/11-productionish-server/README.md

@@ -27,16 +27,6 @@ scripts entry in package.json to look like this:
 },
 ```
 
-In the root directly, go open up `webpack.config.js` and add the publicPath '/' as per below:
-```
-// webpack.config.js
-  output: {
-    path: 'public',
-    filename: 'bundle.js',
-    publicPath: '/'
-  },
-```
-
 When you run `npm start` it checks if the value of our `NODE_ENV` environment variable is
 `production`. If yes, it runs `npm run start:prod`, if not, it runs
 `npm run start:dev`.