(AzureCXP) fixes MicrosoftDocs/azure-docs#42024

Added 10.0.255.255 as reserved IP

Author: msrini-MSFT

articles/virtual-network/virtual-network-ip-addresses-overview-arm.md

@@ -146,7 +146,7 @@ In the Azure Resource Manager deployment model, a private IP address is associat
 
 ### Allocation method
 
-A private IP address is allocated from the address range of the virtual network subnet a resource is deployed in. Azure reserves the first four addresses in each subnet address range, so the addresses cannot be assigned to resources. For example, if the subnet's address range is 10.0.0.0/16, addresses 10.0.0.0-10.0.0.3 cannot be assigned to resources. IP addresses within the subnet's address range can only be assigned to one resource at a time. 
+A private IP address is allocated from the address range of the virtual network subnet a resource is deployed in. Azure reserves the first four addresses in each subnet address range, so the addresses cannot be assigned to resources. For example, if the subnet's address range is 10.0.0.0/16, addresses 10.0.0.0-10.0.0.3 and 10.0.255.255 cannot be assigned to resources. IP addresses within the subnet's address range can only be assigned to one resource at a time. 
 
 There are two methods in which a private IP address is allocated: