Add links to kubernetes (#2405)

Added 2 The New Stack links

content/roadmaps/102-devops/content/105-infrastructure-as-code/104-kubernetes.md

@@ -8,3 +8,5 @@ The popularity of Kubernetes has made it an increasingly important skill for the
 <BadgeLink colorScheme='blue' badgeText='Official Website' href='https://kubernetes.io/'>Kubernetes Website</BadgeLink>
 <BadgeLink colorScheme='blue' badgeText='Documentation' href='https://kubernetes.io/docs/home/'>Kubernetes Documentation</BadgeLink>
 <BadgeLink badgeText='Watch' href='https://www.youtube.com/watch?v=s_o8dwzRlu4'>Kubernetes Crash Course for Absolute Beginners</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://thenewstack.io/primer-how-kubernetes-came-to-be-what-it-is-and-why-you-should-care/'>Primer: How Kubernetes Came to Be, What It Is, and Why You Should Care</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://thenewstack.io/kubernetes-an-overview/'>Kubernetes: An Overview</BadgeLink>