update getting started docs
update getting started docs

remove the environment section since it will not complain anymore until you actually run the app. The blueprints provide this setting for you

hashg/ember-cli-cordova,aquadigital/ember-cli-cordova,isleofcode/corber,isleofcode/corber,swastik/ember-cli-cordova,isleofcode/ember-cordova,aquadigital/ember-cli-cordova,isleofcode/ember-cordova,gordonbisnor/ember-cli-cordova,poetic/ember-cli-cordova,greis/ember-cli-cordova,hashg/ember-cli-cordova,dukex/ember-cli-cordova,poetic/ember-cli-cordova,bterkuile/ember-cli-cordova,AVCEngineering/ember-cli-cordova,isleofcode/ember-cli-cordova,gordonbisnor/ember-cli-cordova,AVCEngineering/ember-cli-cordova,isleofcode/ember-cli-cordova,swastik/ember-cli-cordova,bterkuile/ember-cli-cordova,greis/ember-cli-cordova,dukex/ember-cli-cordova