add webpack to run locally

Author: platzhersh

README.md

@@ -21,7 +21,7 @@ Get started
 ===========
 
 To just run the game locally, run `npm start`.
-If you want to see the console logs in your browser, use the `npm run start-dev` instead.
+If you want to see the console logs in your browser, use the `npm run start:dev` instead.
 
 To modify the game for your needs, look at the `pacman-canvas.js` file and make your modifications.
 To change the look and feel, edit the `pacman-canvas.css` file or also the `index.htm`file, where everything comes together.