Add serverless concepts (#2377)

* serverless concept

* Update content/roadmaps/114-software-architect/content/115-operations-knowledge/102-serverless-concepts.md

Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

content/roadmaps/114-software-architect/content/115-operations-knowledge/102-serverless-concepts.md

@@ -1 +1,10 @@
-# Serverless concepts
+# Serverless Concepts
+
+Serverless is a cloud-native development model that allows developers to build and run applications without having to manage servers. 
+
+There are still servers in serverless, but they are abstracted away from app development. A cloud provider handles the routine work of provisioning, maintaining, and scaling the server infrastructure. Developers can simply package their code in containers for deployment.
+
+<ResourceGroupTitle>Free Content</ResourceGroupTitle>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.redhat.com/en/topics/cloud-native-apps/what-is-serverless'>What is serverless?</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://www.cloudflare.com/learning/serverless/what-is-serverless/'>What is serverless computing?</BadgeLink>
+<BadgeLink colorScheme='yellow' badgeText='Read' href='https://aws.amazon.com/serverless/'>Serverless on AWS</BadgeLink>