Merge pull request kubernetes-sigs#6100 from christianh814/patch-1

📖 Update Quickstart for GCP Image

Author: k8s-ci-robot

docs/book/src/user/quick-start.md

@@ -515,7 +515,9 @@ export WORKER_NODE_TYPE="t1.small"
 export GCP_REGION="<GCP_REGION>"
 export GCP_PROJECT="<GCP_PROJECT>"
 # Make sure to use same kubernetes version here as building the GCE image
-export KUBERNETES_VERSION=1.20.9
+export KUBERNETES_VERSION=1.23.3
+# This is the image you built. See https://github.com/kubernetes-sigs/image-builder
+export IMAGE_ID=projects/$GCP_PROJECT/global/images/<built image>
 export GCP_CONTROL_PLANE_MACHINE_TYPE=n1-standard-2
 export GCP_NODE_MACHINE_TYPE=n1-standard-2
 export GCP_NETWORK_NAME=<GCP_NETWORK_NAME or default>