[BUG] Links in walkthroughs/eks are out of date

[shubharao]

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Describe the bug
I followed the instructions in https://github.com/aws/aws-app-mesh-examples/blob/master/walkthroughs/eks/base.md which installed older versions of controller and sidecar inject. This writeup needs updates or it can be deleted if all workflows are covered in any other https://github.com/aws/aws-app-mesh-examples/tree/master/walkthroughs/howto-k8s-cloudmap

Platform
EKS etc.

Expected behavior
I expect the latest version of the controller and to get the ability to use all latest features

Config files, and API responses
creating cloudmap based service discovery was failing

Additional context
Add any other context about the problem here.

[smmallu]

I am working on a related item, I can update these,Please assign to me @shubharao
Alias @smmallu

[kiranmeduri]

@smmallu updated README to use aws/eks-charts (helm).