docs(update): update the docs after implement new build system
docs(update): update the docs after implement new build system

marc-inn/ng2-play,marc-inn/ng2-play,marc-inn/ng2-play,rolandjitsu/ng2-lab,marc-inn/ng2-play,btford/ng2-play,btford/ng2-play,rolandjitsu/angular-lab,rolandjitsu/ng2-play,rolandjitsu/ng2-play,rolandjitsu/ng2-lab,rolandjitsu/ng2-lab,btford/ng2-play,rolandjitsu/angular-lab,btford/ng2-play,rolandjitsu/ng2-play,rolandjitsu/angular-lab,rolandjitsu/ng2-play,rolandjitsu/angular-lab,rolandjitsu/ng2-lab