message: docs: fix incorrect title in the roadmap
  Ensure we're using h3 titles for consistency.
  PR Close
diff: @@ -41,7 +41,7 @@ A [long-standing feature request](https://github.com/angular/angular/issues/8785
  The feature lets developers augment their own components with additional behaviors without using inheritance.
  The project requires substantial effort in terms of the definition of APIs, semantics, and implementation.
  -## Better stack traces
  +### Better stack traces
  The Angular and the Chrome DevTools are working together to enable more readable stack traces for error messages.
  