### Modules

To simplify app.js you can split your code into modules
Call your module as index.js for easier using, so then just import components/documentation where index.js file is.
index.js

            import {DocumentationComponent} from './documentation.component';
            import {DocQuickStartComponent} from './quick-start/doc-quick-start.component';

            export default [
                {c: DocumentationComponent, selector: 'app-documentation'},
                {c: DocQuickStartComponent, selector: 'app-documentation-quick-start'}
                ...
            ]

app.js

            import Docs from './components/documentation';
            Register({
                ...
                modules: [
                    Docs
                    ...
                ]
                ...
            });