Update includes/passwordless/event-hub/event-hub-assign-roles.md

Acrolinx fix

Author: 19BMG00

includes/passwordless/event-hub/event-hub-assign-roles.md

@@ -15,7 +15,7 @@ When developing locally, make sure that the user account that connects to Azure
 The following example assigns the `Azure Event Hubs Data Owner` role to your user account, which provides full access to Azure Event Hubs resources. In a real scenario, follow the [Principle of Least Privilege](/azure/active-directory/develop/secure-least-privileged-access) to give users only the minimum permissions needed for a more secure production environment.
 
 ### Azure built-in roles for Azure Event Hubs
-For Azure Event Hubs, the management of namespaces and all related resources through the Azure portal and the Azure resource management API is already protected using the Azure RBAC model. Azure provides the below Azure built-in roles for authorizing access to a Event Hubs namespace:
+For Azure Event Hubs, the management of namespaces and all related resources through the Azure portal and the Azure resource management API is already protected using the Azure RBAC model. Azure provides the below Azure built-in roles for authorizing access to an Event Hubs namespace:
 
 - [Azure Event Hubs Data Owner](../../../articles/role-based-access-control/built-in-roles.md#azure-event-hubs-data-owner): Enables data access to Event Hubs namespace and its entities (queues, topics, subscriptions, and filters)
 - [Azure Event Hubs Data Sender](../../../articles/role-based-access-control/built-in-roles.md#azure-event-hubs-data-sender): Use this role to give the sender access to Event Hubs namespace and its entities.