Added documentation notes about having no namespace in conjunction with the AMD wrapper.
Added documentation notes about having no namespace in conjunction with the AMD wrapper.

rally25rs/grunt-contrib-handlebars,skamenetskiy/grunt-contrib-handlebars,gruntjs/grunt-contrib-handlebars,andrewhosgood/grunt-contrib-handlebars,szarouski/grunt-contrib-handlebars,kaidoe/grunt-contrib-handlebars