docs: develop guideline with a little design doc
docs: develop guideline with a little design doc

dherges/ng-packagr,dherges/ng-packagr,DavidParks8/ng-packagr,DavidParks8/ng-packagr,DavidParks8/ng-packagr,dherges/ng-packagr,DavidParks8/ng-packagr,dherges/ng-packagr