docs: update k8s cluster version in README (#2688)

Author: kayx23

README.md

@@ -36,10 +36,10 @@ resources.
 
 ### Prerequisites
 
-* go version v1.22.0+
+* go version v1.22.0+.
 * docker version 17.03+.
-* kubectl version v1.11.3+.
-* Access to a Kubernetes v1.11.3+ cluster.
+* Kubernetes cluster version 1.26+.
+* kubectl version within one minor version difference of your cluster.
 
 ### To Deploy on the cluster