Não atualizou | Angular parte 1: produtividade e organização com framework SPA

<ap-photo 
    *ngFor="let photo of photos" 
    [url]="photo.url"
    [description]="photo.description">
</ap-photo>

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss'],
})
export class AppComponent {
  photos = [
    {
      url: 'https://upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Sultan_the_Barbary_Lion.jpg/440px-Sultan_the_Barbary_Lion.jpg',
      description: 'Leão'
    },
    {
      url: 'https://upload.wikimedia.org/wikipedia/commons/thumb/2/2d/Lioness_Etosha_NP.jpg/500px-Lioness_Etosha_NP.jpg',
      description: 'Leoa'
    }
  ];
}