add link to blog

Signed-off-by: Sébastien Allamand <[email protected]>

patterns/vpc-lattice/cross-cluster-pod-communication/README.md

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 This pattern showcases secure multi-cluster communication between two EKS clusters in different VPCs using VPC Lattice with IAM authorization. It illustrates service discovery and highlights how VPC Lattice facilitates communication between services in EKS clusters with overlapping CIDRs, eliminating the need for networking constructs like private NAT Gateways and Transit Gateways.
 
+> You can also find more informations in the [associated blog post](https://aws.amazon.com/blogs/containers/secure-cross-cluster-communication-in-eks-with-vpc-lattice-and-pod-identity-iam-session-tags/)
+
 ## Scenario
 
 With this solution we showcase how to configure Amazon VPC Lattice using the AWS Gateway API Controller in order to manage Amazon VPC Lattice resources through native Kubernetes Gateway API objects. This pattern deploys two distinct VPCs each having it's own EKS cluster, which contain an application that will be used to demonstrate cross-cluster communication.