docs: add link to testing course in Vitest guide (#2075)

Author: brandonroberts

apps/docs-app/docs/features/testing/vitest.md

@@ -315,6 +315,10 @@ pnpm test
 
 > The `npx vitest` command can also be used directly.
 
+<strong>Hungry for more? Check out Younes Jaaidi's [video course](https://courses.marmicode.io/courses/pragmatic-angular-testing?ref=ec72c7) on Angular testing.</strong>
+
+[![Angular Testing Course](/img/pragmatic-angular-testing-banner-2.jpg)](https://courses.marmicode.io/courses/pragmatic-angular-testing?ref=ec72c7)
+
 ## Snapshot Testing
 
 For snapshot testing you can use `toMatchSnapshot` from `expect` API.

apps/docs-app/sidebars.js

@@ -151,7 +151,7 @@ const sidebars = {
     },
     {
       type: 'category',
-      label: 'Testing',
+      label: 'Testing w/Vitest',
       items: [
         {
           type: 'doc',
@@ -161,7 +161,7 @@ const sidebars = {
         {
           type: 'doc',
           id: 'features/testing/vitest',
-          label: 'Adding Vitest',
+          label: 'Setting Up Vitest',
         },
       ],
     },