> `api` is synced from https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/api. Code changes are made in that location, merged into `k8s.io/kubernetes` and later synced here.    This line ends up conveying that one shouldn't modify _any_ files under this repo. So we probably don't need this section.    Or if it's better to be explicit: Directly modify any files ~~under `pkg`~~ in this repo