fix: fix broken links (#22)

Fixes #21.

Fix broken links in all documents.

docs/frameworks-and-libraries/migrate-from-angularjs-to-angular.md

@@ -3,11 +3,11 @@
 ## Suggested resources
 
 - [Official documentation: Upgrading from AngularJS to Angular](https://angular.io/guide/upgrade)
-- [Migrating an AngularJS Project into an Nx Workspace](https://nx.dev/recipe/migration-angularjs)
+- [Migrating an AngularJS Project into an Nx Workspace](https://nx.dev/recipes/angular/migration/angularjs)
 - [Two Approaches to Upgrading Angular Apps by Victor Savkin](https://blog.nrwl.io/two-approaches-to-upgrading-angular-apps-6350b33384e3)
 - [Upgrading Angular Applications: Upgrade Shell by Victor Savkin](https://blog.nrwl.io/upgrading-angular-applications-upgrade-shell-4d4f4a7e7f7b)
 - [Upgrading Angular Applications by Victor Savkin](https://leanpub.com/ngupgrade)
-  - [Read the book for free on Nrwl Connect](https://connect.nrwl.io/app/books/ngupgrade)
+  - [Download the book for free on Nx.dev](https://go.nx.dev/upgrading-angular-applications-book)
 - [Upgrading AngularJS by Sam Julien](https://www.upgradingangularjs.com/)
 
 ## Suggested topics

docs/standalone-apis/testing-a-standalone-attribute-directive-using-the-angular-testbed.md

@@ -2,7 +2,7 @@
 
 For the purpose of this example, we will create a standalone attribute directive
 that adds the CSS classes provided by [Primer](https://primer.style/) for its
-[Button](https://primer.style/css/components/buttons) component:
+[Button](https://primer.style/components/button/css) component:
 
 ```typescript {12} title="primer-button.directive.ts"
 import { Directive, HostBinding, Input } from "@angular/core";

package.json

@@ -14,7 +14,7 @@
     "write-translations": "docusaurus write-translations",
     "write-heading-ids": "docusaurus write-heading-ids",
     "typecheck": "tsc",
-    "broken-link-checker": "blc http://localhost:3000/angular-guides/ --recursive --ordered --exclude https://twitter.com/Thisis_Angular --exclude https://twitter.com/Thisis_Learning --exclude 'https://github.com/this-is-angular/angular-guides/edit/main/*' --exclude 'https://ngrx.io/*' --exclude 'https://angularplayground.it/*' --exclude 'https://docs.devexpress.com/*' --exclude 'https://www.softwaretestinghelp.com/*' --exclude 'https://youtu.be/*' --exclude 'https://youtube.com/*'"
+    "broken-link-checker": "blc http://localhost:3000/angular-guides/ --recursive --ordered --exclude https://twitter.com/Thisis_Angular --exclude https://twitter.com/Thisis_Learning --exclude https://twitter.com/Michael_Hladky/status/1136327245050630144 --exclude 'https://github.com/this-is-angular/angular-guides/edit/main/*' --exclude 'https://ngrx.io/*' --exclude 'https://angularplayground.it/*' --exclude 'https://docs.devexpress.com/*' --exclude 'https://www.softwaretestinghelp.com/*' --exclude 'https://youtu.be/*' --exclude 'https://youtube.com/*'"
   },
   "dependencies": {
     "@algolia/client-search": "^4.13.0",