message: docs: fix 404 link to SFEIR website
  Also, I moved SFEIR training description to the "onsite" section since SFEIR doesn't deliver online training.
diff: "title": "Learn Angular (francais)",
  "url": "http://www.learn-angular.fr/"
  },
  - "sad200": {
  - "desc": "Free Angular training delivered by SFEIR in France",
  - "rev": true,
  - "title": "SFEIR School (French)",
  - "url": "https://school.sfeir.com/project/sad-200/"
  - },
  "toddmotto-ultimateangular": {
  "desc": "Online courses providing in-depth coverage of the Angular ecosystem, AngularJS, Angular and TypeScript, with functional code samples and a full-featured seed environment. Get a deep understanding of Angular and TypeScript from foundation to functional application, then move on to advanced topics with Todd Motto and collaborators.",
  "rev": true,
  "rev": true,
  "title": "Learn Javascript (Russian)",
  "url": "https://learn.javascript.ru/courses/angular"
  + },
  + "sa200": {
  + "desc": "Free Angular training delivered by SFEIR in France",
  + "rev": true,
  + "title": "SFEIR School (French)",
  + "url": "https://school.sfeir.com/project/sa200/"
  }
  }
  }
  