Add links to releases
*Don't use `go get` / `go install`, instead you MUST download a tar binary release or create your own release using
the release program.* To build your own release see [CONTRIBUTING.md](CONTRIBUTING.md)
+Releases:
+- [darwin HEAD](https://storage.googleapis.com/kubebuilder-release/kubebuilder-release-master-head-darwin-amd64.tar.gz)
+- [linux HEAD](https://storage.googleapis.com/kubebuilder-release/kubebuilder-release-master-head-linux-amd64.tar.gz)
+- [darwin 0.30](https://storage.googleapis.com/kubebuilder-release/kubebuilder-release-v1.9-alpha.30-darwin-amd64.tar.gz)
+- [linux 0.30](https://storage.googleapis.com/kubebuilder-release/kubebuilder-release-v1.9-alpha.30-linux-amd64.tar.gz)
+
## `kubebuilder`
Kubebuilder is a framework for building Kubernetes APIs.
