docs(aio): update migrated content from anguar.io

aio/content/examples/toh-1/app/app.component.1.ts

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+import { Component } from '@angular/core';
+
+let t = {
+// #docregion show-hero
+template: `<h1>{{title}}</h1><h2>{{hero}} details!</h2>`
+// #enddocregion show-hero
+};
+
+t = {
+// #docregion show-hero-2
+template: `<h1>{{title}}</h1><h2>{{hero.name}} details!</h2>`
+// #enddocregion show-hero-2
+};
+
+t = {
+// #docregion multi-line-strings
+template: `
+  <h1>{{title}}</h1>
+  <h2>{{hero.name}} details!</h2>
+  <div><label>id: </label>{{hero.id}}</div>
+  <div><label>name: </label>{{hero.name}}</div>
+  `
+// #enddocregion multi-line-strings
+};
+
+
+/*
+// #docregion name-input
+<div>
+  <label>name: </label>
+  <input [(ngModel)]="hero.name" placeholder="name">
+</div>
+// #enddocregion name-input
+*/
+
+/////////////////
+
+@Component(t)
+// #docregion app-component-1
+export class AppComponent {
+  title = 'Tour of Heroes';
+  hero = 'Windstorm';
+}
+// #enddocregion app-component-1