docs(ngModule): fixed typos

public/docs/ts/latest/guide/ngmodule.jade

@@ -762,7 +762,7 @@ a#hero-module
 +makeExample('ngmodule/ts/app/hero/hero.module.3.ts', 'class', 'app/hero/hero.module.ts (class)')(format='.')
 :marked
   It imports the `FormsModule` because the `HeroDetailComponent` template binds with `[(ngModel)]`. 
-  It imports a `routing` object from `hero.routing.ts` just as `ContractModule` and `CrisisModule` do.
+  It imports a `routing` object from `hero.routing.ts` just as `ContactModule` and `CrisisModule` do.
 
   The `CrisisModule` is much the same. There's nothing more to say that's new. 
 
@@ -785,7 +785,7 @@ a#shared-module
   * move the `UserService` and `TitleComponent` from `app/` to `app/shared`
   * delete the `HighlightDirective` classes from `app/` and `app/hero`
   * create a `SharedModule` class to own the shared material
-  * updata all other modules to  import `SharedModule`
+  * update all other modules to  import `SharedModule`
 
   Most of this is familiar blocking and tackling. 
 .l-sub-section