message: docs: add explanation of how to use locally created build artifacts in a local project
  Add explanation of using `ng-dev build-and-link` to test local changes in another project.
  Closes
  PR Close
diff: @@ -93,6 +93,17 @@ merged if the code is formatted properly and all tests are passing.
  <a name="formatting-your-source-code">
  <a name="clang-format"></a>
  +### Testing changes against a local library/project
  +
  +Often for developers the best way to ensure the changes they have made work as expected is to run
  +use changes in another library or project. To do this developers can build Angular locally, and
  +using `yarn link` build a local project with the created artifacts.
  +
  +This can be done by running:
  +```sh
  +yarn ng-dev build-and-link <path-to-local-project-root>
  +```
  +
  ## Formatting your source code
  Angular uses [clang-format](https://clang.llvm.org/docs/ClangFormat.html) to format the source code.
  