Update pages/clusters-for-kafka/concepts.mdx

Author: RoRoJ

pages/clusters-for-kafka/concepts.mdx

@@ -45,7 +45,7 @@ A Cluster for Apache Kafka® consists of one or more nodes, also called **broker
 
 ## Storage
 
-A cluster's storage is used to persist events, so they can be reliably consumed by services and applications. During Private Beta, each Cluster for Cluster for Apache Kafka® has a fixed amount of 100 GB of storage per node.
+A cluster's storage is used to persist events, so they can be reliably consumed by services and applications. During Private Beta, each Cluster for Apache Kafka® has a fixed amount of 100 GB of storage per node.
 
 ## TLS certificate