docs(toh-1/ts): minor edits

closes #1615
- Fixed HTML.
- Removed unnecessary snippet since it is in the code.
- Copyedit: (Hero property) -> (hero property).

Author: chalin

public/docs/_examples/toh-1/ts-snippets/app.component.snippets.pt1.ts

@@ -37,10 +37,3 @@ export class AppComponent {
   hero = 'Windstorm';
 }
 // #enddocregion app-component-1
-
-// #docregion hero-property-1
-hero: Hero = {
-  id: 1,
-  name: 'Windstorm'
-};
-// #enddocregion hero-property-1

public/docs/_examples/toh-1/ts/app/app.component.ts

@@ -22,10 +22,11 @@ export class Hero {
 })
 export class AppComponent {
   title = 'Tour of Heroes';
+  // #docregion hero-property-1
   hero: Hero = {
     id: 1,
     name: 'Windstorm'
   };
+  // #enddocregion hero-property-1
 }
-
 // #enddocregion pt1

public/docs/ts/latest/tutorial/toh-pt1.jade

@@ -78,7 +78,7 @@ code-example(language="bash").
   Now that we have a `Hero` class, let’s refactor our component’s `hero` property to be of type `Hero`.
   Then initialize it with an id of `1` and the name, "Windstorm".
 
-+makeExample('toh-1/ts-snippets/app.component.snippets.pt1.ts', 'hero-property-1', 'app.component.ts (Hero property)')(format=".")
++makeExample('toh-1/ts/app/app.component.ts', 'hero-property-1', 'app.component.ts (hero property)')(format=".")
 
 :marked
   Because we changed the hero from a string to an object,