At this point, if you look at the route configuration in app-routing.module.ts in the src/app folder, you will find one new route definition, builder:
const routes: Routes = [ ... { path: 'builder', component: WorkoutBuilderComponent }, ...];
And if you run the application, you will see that the start screen shows another link, Create a Workout:
Behind the scenes, we have added another router link for this link into start.component.html:
<a routerLink="/builder" class="btn btn-primary btn-lg btn-block" role="button" aria-pressed="true"> <span>Create a Workout</span> <span class="ion-md-add"></span> ...
