add repo to instructions

hack/jenkins/kicbase_auto_build.sh

@@ -20,8 +20,9 @@ set -x
 yes|gcloud auth configure-docker
 now=$(date +%s)
 KV=$(egrep "Version =" pkg/drivers/kic/types.go | cut -d \" -f 2 | cut -d "-" -f 1)
+KIC_REPO=gcr.io/k8s-minikube/kicbase-builds
 export KIC_VERSION=$KV-$now-$ghprbPullId
-export KICBASE_IMAGE_REGISTRIES=gcr.io/k8s-minikube/kicbase-builds:$KIC_VERSION
+export KICBASE_IMAGE_REGISTRIES=$KIC_REPO:$KIC_VERSION
 
 curl -L https://github.com/kubernetes/minikube/raw/master/pkg/drivers/kic/types.go --output types-head.go
 HEAD_KIC_TIMESTAMP=$(egrep "Version =" types-head.go | cut -d \" -f 2 | cut -d "-" -f 2)
@@ -42,7 +43,7 @@ docker pull $KICBASE_IMAGE_REGISTRIES
 fullsha=$(docker inspect --format='{{index .RepoDigests 0}}' $KICBASE_IMAGE_REGISTRIES)
 sha=$(echo ${fullsha} | cut -d ":" -f 2)
 
-message="Hi ${ghprbPullAuthorLoginMention},\\n\\nA new kicbase image is available, please update your PR with the new tag and SHA.\\nIn pkg/drivers/kic/types.go:\\n\\n\\t// Version is the current version of kic\\n\\tVersion = \\\"${KIC_VERSION}\\\"\\n\\t// SHA of the kic base image\\n\\tbaseImageSHA = \\\"${sha}\\\"\\nThen run \`make generate-docs\` to update our documentation to reference the new image."
+message="Hi ${ghprbPullAuthorLoginMention},\\n\\nA new kicbase image is available, please update your PR with the new tag and SHA.\\nIn pkg/drivers/kic/types.go:\\n\\n\\t// Version is the current version of kic\\n\\tVersion = \\\"${KIC_VERSION}\\\"\\n\\t// SHA of the kic base image\\n\\tbaseImageSHA = \\\"${sha}\\\"\\n\\t// The name of the GCR kicbase repository\\n\\tgcrRepo = \\\"${KIC_REPO}\\\"\\nThen run \`make generate-docs\` to update our documentation to reference the new image."
 
 curl -s -H "Authorization: token ${access_token}" \
 	 -H "Accept: application/vnd.github.v3+json" \