adding descriptions to each page

Author: anupras-mohapatra-arm

content/learning-paths/servers-and-cloud-computing/rafay-eks/cluster.md

@@ -1,5 +1,6 @@
 ---
 title: Create an Amazon EKS cluster
+description: Create and apply a Rafay cluster manifest to provision an Amazon EKS cluster with an AWS Graviton-based node group, then download kubeconfig and verify the nodes report arm64.
 weight: 3
 
 ### FIXED, DO NOT MODIFY

content/learning-paths/servers-and-cloud-computing/rafay-eks/nginx.md

@@ -1,5 +1,6 @@
 ---
 title: Deploy NGINX to the Amazon EKS cluster and clean up
+description: Deploy NGINX to an Amazon EKS cluster on AWS Graviton-based nodes, test in-cluster connectivity, and clean up the Kubernetes and cloud resources.
 weight: 4
 
 ### FIXED, DO NOT MODIFY

content/learning-paths/servers-and-cloud-computing/rafay-eks/setup.md

@@ -1,5 +1,6 @@
 ---
 title: Set up Rafay and AWS access
+description: Install kubectl and rctl, configure Rafay CLI access, and register an AWS cloud credential so Rafay can provision a Graviton-based Amazon EKS cluster.
 weight: 2
 
 ### FIXED, DO NOT MODIFY