Cloud SQL doc fixes.
Cloud SQL doc fixes.

GoogleCloudPlatform/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples,mastersingh24/kubernetes-engine-samples,GoogleCloudPlatform/kubernetes-engine-samples