docs: link to book from readme

Signed-off-by: Carlos Salas <[email protected]>

Author: salasberryfin

README.md

@@ -14,6 +14,10 @@ Kubernetes-native declarative infrastructure for GCP.
 
 The [Cluster API](https://github.com/kubernetes-sigs/cluster-api) brings declarative Kubernetes-style APIs to cluster creation, configuration and management. The API itself is shared across multiple cloud providers allowing for true Google Cloud hybrid deployments of Kubernetes.
 
+## Documentation
+
+Please see our [book](https://cluster-api-gcp.sigs.k8s.io/) for in-depth documentation.
+
 ## Quick Start
 
 Checkout our [Cluster API Quick Start] to create your first Kubernetes cluster
@@ -50,10 +54,6 @@ Each version of Cluster API for Google Cloud will attempt to support at least tw
 
 ----
 
-## Documentation
-
-Presently, our docs can be found [here](https://github.com/kubernetes-sigs/cluster-api-provider-gcp/tree/main/docs).
-
 ## Getting Involved and Contributing
 
 Are you interested in contributing to cluster-api-provider-gcp? We, the maintainers