Update AvailabilitySet count limit

Author: changov

includes/azure-virtual-machines-limits-azure-resource-manager.md

@@ -11,7 +11,7 @@ ms.author: cynthn
 | VM total cores per [subscription](../articles/billing-buy-sign-up-azure-subscription.md) |20<sup>1</sup> per region. Contact support to increase limit. |
 | Azure Spot VM total cores per [subscription](../articles/billing-buy-sign-up-azure-subscription.md) |20<sup>1</sup> per region. Contact support to increase limit. |
 | VM per series, such as Dv2 and F, cores per [subscription](../articles/billing-buy-sign-up-azure-subscription.md) |20<sup>1</sup> per region. Contact support to increase limit. |
-| [Availability sets](../articles/virtual-machines/windows/manage-availability.md#configure-multiple-virtual-machines-in-an-availability-set-for-redundancy) per subscription |2,000 per region. |
+| [Availability sets](../articles/virtual-machines/windows/manage-availability.md#configure-multiple-virtual-machines-in-an-availability-set-for-redundancy) per subscription |2,500 per region. |
 | Virtual machines per availability set | 200 |
 | Certificates per subscription |Unlimited<sup>2</sup> |