fix(virtual-scroll): working in angular

packages/demos/angular/src/app/virtual-scroll/virtual-scroll-routing.module.ts

@@ -0,0 +1,14 @@
+import { NgModule } from '@angular/core';
+import { Routes, RouterModule } from '@angular/router';
+
+import { VirtualScrollPageComponent } from './virtual-scroll-page.component';
+
+const routes: Routes = [
+  { path: '', component: VirtualScrollPageComponent }
+];
+
+@NgModule({
+  imports: [RouterModule.forChild(routes)],
+  exports: [RouterModule]
+})
+export class VirtualScrollRoutingModule { }