Update bazelrc example by linking to bazelrc-preset.bzl

[hofbi]

https://github.com/bazel-contrib/bazelrc-preset.bzl is the new project we recommend and it contains all information needed.

[aspect-workflows]

Test

⚠️ Buildkite build #836 failed.

Failed tests (2)

//angular/projects/my-app:test [k8-fastbuild]  🔗
//angular/projects/my-lib:test [k8-fastbuild]  🔗

💡 To reproduce the test failures, run

bazel test //angular/projects/my-lib:test //angular/projects/my-app:test

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