message: docs(bazel): add a link to the Bazel doc
  The developer doc mentions but doesn't link to BAZEL.md. Add link and fix capitalization.
  PR Close
diff: @@ -29,7 +29,7 @@ following products on your development machine:
  * [Java Development Kit](http://www.oracle.com/technetwork/es/java/javase/downloads/index.html) which is used
  to execute the selenium standalone server for e2e testing.
  -* (Optional for now) [Bazel](https://bazel.build/), please follow instructions in [Bazel.md]
  +* (Optional for now) [Bazel](https://bazel.build/), please follow instructions in [BAZEL.md](https://github.com/angular/angular/blob/master/docs/BAZEL.md)
  ## Getting the Sources
  