(docs) add questions and code coverage support
(docs) add questions and code coverage support

Include questions asked by the different generators. Mention that
code coverage reports are created when the Gulp unitTest task is
ran.

ballerabdude/generator-ng-poly,egeland/generator-ng-poly,TheOneTheOnlyDavidBrown/generator-ng-poly,dustinspecker/generator-ng-poly,gdi2290/generator-ng-poly,Ins87/generator-ng-poly,Ins87/generator-ng-poly,egeland/generator-ng-poly,Ins87/generator-ng-poly,ballerabdude/generator-ng-poly,dustinspecker/generator-ng-poly,dustinspecker/generator-ng-poly,sunphg/generator-ng-poly,sunphg/generator-ng-poly,egeland/generator-ng-poly,ballerabdude/generator-ng-poly,TheOneTheOnlyDavidBrown/generator-ng-poly,TheOneTheOnlyDavidBrown/generator-ng-poly,gdi2290/generator-ng-poly,sunphg/generator-ng-poly