message: docs: add book about testing to resources
  PR Close
diff: "desc": "Comprehensive learning resource on building Angular apps with NgRx",
  "url": "https://gumroad.com/l/angular-ngrx-book",
  "logo": ""
  + },
  + "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",
  + "logo": ""
  }
  }
  },
  