i followed the following link ,
but could not find the folders that tutorial is talking about.
although ionic serve is correctly working and displaying the pages in browser but the folders the tutorial is talking about is not there.
Your system information:
Cordova CLI: 6.3.1
Ionic Framework Version: 2.0.0-rc.0
Ionic CLI Version: 2.1.0
Ionic App Lib Version: 2.0.0-beta.20
OS: Windows 7 SP1
Node Version: v4.6.0