expanded preview guidance

included references to opt-in's for availabilityzones and haports

Author: christiankuhtz

articles/load-balancer/load-balancer-standard-overview.md

@@ -22,7 +22,7 @@ ms.author: kumud
 The Azure Load Balancer Standard SKU and Public IP Standard SKU together enable you to build highly scalable and reliable architectures.  Applications using Load Balancer Standard can take advantage of new capabilities in addition to low latency, high throughput, and scale for millions of flows for all TCP and UDP applications.
 
 >[!NOTE]
-> Load Balancer Standard SKU is currently in Preview. During preview, the feature may not have the same level of availability and reliability as features that are in general availability release. For more information, see [Microsoft Azure Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/). Use the Generally Available [Load Balancer Basic SKU](load-balancer-overview.md) for your production services.
+> Load Balancer Standard SKU is currently in Preview. During preview, the feature may not have the same level of availability and reliability as features that are in general availability release. For more information, see [Microsoft Azure Supplemental Terms of Use for Microsoft Azure Previews](https://azure.microsoft.com/support/legal/preview-supplemental-terms/). Use the Generally Available [Load Balancer Basic SKU](load-balancer-overview.md) for your production services.  Features associated with this preview, [Availability Zones](https://aka.ms/availabilityzones) and [HA Ports](https://aka.ms/haports), a require separate opt-in at this time. Please follow the respective instructions for sign-up in addition to Load Balancer [Standard Preview](#preview-sign-up).
 
 ## Why use Load Balancer Standard