remove trailing commas

Author: Adam-Meisen

public/docs/ts/latest/tutorial/toh-pt6.jade

@@ -318,6 +318,9 @@ block add-new-hero-via-detail-comp
 :marked
   Add the following CSS to the bottom of `heroes.component.css`.
 +makeExample('toh-6/ts/app/heroes.component.css', 'delete-hero', 'app/heroes.component.css (delete)')(format=".")
+:marked
+  Add the following CSS to the bottom of `heroes.component.css`.
++makeExample('toh-6/ts/app/heroes.component.css', 'delete-hero', 'app/heroes.component.css (delete)')(format=".")
 :marked
   Now let's fix-up the `HeroesComponent` to support the *add* and *delete* actions used in the template.
   Let's start with *add*.
@@ -419,7 +422,7 @@ block file-summary
      toh-6/ts/app/hero-detail.component.ts,
      toh-6/ts/app/hero-detail.component.html,
      toh-6/ts/app/hero.service.ts,
-     toh-6/ts/app/in-memory-data.service.ts,`,
+     toh-6/ts/app/in-memory-data.service.ts`,
     null,
     `app.comp...ts,
      heroes.comp...ts,
@@ -428,5 +431,5 @@ block file-summary
      hero-detail.comp...ts,
      hero-detail.comp...html,
      hero.service.ts,
-     in-memory-data.service.ts,`
+     in-memory-data.service.ts`
   )