chore(migrate-nodegroups): add link to tutorial for full instructions
MODIFY
aws-ts-eks-migrate-nodegroups/README.md
aws-ts-eks-migrate-nodegroups/README.md
Creates an EKS cluster with node groups and a workload, and showcases how add an
additional node group to use for workload migration with zero downtime.
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+For step-by-step instructions, check out the [tutorial][tutorial-migrate-nodegroups].
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+[tutorial-migrate-nodegroups]: http://www.pulumi.com/docs/reference/tutorials/kubernetes/tutorial-eks-migrate-nodegroups/

chore(migrate-nodegroups): add link to tutorial for full instructions