message: docs: remove core.module.ts from file tree in style guide
  PR Close
diff: @@ -1985,10 +1985,6 @@ Here is a compliant folder and file structure:
  <div class='children'>
  - <div class='file'>
  - core.module.ts
  - </div>
  -
  <div class='file'>
  exception.service.ts|spec.ts
  </div>
  