Update what-is-kubernetes.md (#15181)

container needs to start i cant be the same container . so renamed from restart to start

content/en/docs/concepts/overview/what-is-kubernetes.md

@@ -50,7 +50,7 @@ Containers are becoming popular because they have many benefits. Some of the con
 
 ## Why do I need Kubernetes and what can it do
 
-Containers are a good way to bundle and run your applications. In a production environment, you need to manage the containers that run the applications and ensure that there is no downtime. For example, if a container goes down, another container needs to restart. Wouldn't it be easier if this behavior was handled by a system?
+Containers are a good way to bundle and run your applications. In a production environment, you need to manage the containers that run the applications and ensure that there is no downtime. For example, if a container goes down, another container needs to start. Wouldn't it be easier if this behavior was handled by a system?
 
 That's how Kubernetes comes to the rescue! Kubernetes provides you with a framework to run distributed systems resiliently. It takes care of your scaling requirements, failover, deployment patterns, and more. For example, Kubernetes can easily manage a canary deployment for your system.