Update replicaset.md

Author: arvinep

content/en/docs/concepts/workloads/controllers/replicaset.md

@@ -323,7 +323,7 @@ ReplicaSets do not support a rolling update directly.
 
 {{< feature-state feature_gate_name="DeploymentReplicaSetTerminatingReplicas" >}}
 
-You can enable this feature it by setting the `DeploymentReplicaSetTerminatingReplicas`
+You can enable this feature by setting the `DeploymentReplicaSetTerminatingReplicas`
 [feature gate](/docs/reference/command-line-tools-reference/feature-gates/)
 on the [API server](/docs/reference/command-line-tools-reference/kube-apiserver/)
 and on the [kube-controller-manager](/docs/reference/command-line-tools-reference/kube-controller-manager/)