message: docs: Update link to Testing Angular online book
  The book has moved to a its own domain.
  PR Close
diff: "testing-angular-guide": {
  "title": "Testing Angular",
  "desc": "A Guide to Robust Angular Applications (free online book and e-book)",
  - "url": "https://molily.de/testing-angular",
  + "url": "https://testing-angular.com",
  "logo": ""
  },
  "butter-cms": {
  