docs: add Angular Master website to resources list (angular#47129)

PR Close angular#47129

Author: kalbarczyk

aio/content/marketing/resources.json

@@ -816,6 +816,11 @@
  "title": "Angular University",
  "url": "https://angular-university.io/"
  },
+ "angular-master-dev": {
+ "desc": "Angular Architecture: Strategic Design with Nx - Online Video Course",
+ "title": "Angular Master",
+ "url": "https://angularmaster.dev/"
+ },
  "-acceleb": {
  "desc": "Customized, Instructor-Led Angular Training",
  "title": "Accelebrate",