[EH] Update README Link (#34911)

* update create azure acct link

* update link

Author: kashifkhan

sdk/eventhub/azure-eventhub/README.md

@@ -26,7 +26,7 @@ The Azure Event Hubs client library allows for publishing and consuming of Azure
 
 - Python 3.8 or later.
 - **Microsoft Azure Subscription:**  To use Azure services, including Azure Event Hubs, you'll need a subscription.
-If you do not have an existing Azure account, you may sign up for a free trial or use your MSDN subscriber benefits when you [create an account](https://account.windowsazure.com/Home/Index).
+If you do not have an existing Azure account, you may sign up for a free trial or use your MSDN subscriber benefits when you [create an account](https://azure.microsoft.com/free/).
 
 - **Event Hubs namespace with an Event Hub:** To interact with Azure Event Hubs, you'll also need to have a namespace and Event Hub  available.
 If you are not familiar with creating Azure resources, you may wish to follow the step-by-step guide