Update New-AzureRmVpnClientConfiguration.md

Author: Maddie Clayton

src/ResourceManager/Network/Commands.Network/help/New-AzureRmVpnClientConfiguration.md

@@ -26,7 +26,7 @@ this allows the users to create the Vpn profile package based on pre-configured
 
 ### Example 1
 ```
-PS C:\> New-AzureRmVpnClientConfiguration -VirtualNetworkGatewayName "ContosoVirtualNetworkGateway" -ResourceGroupName "ContosoResourceGroup" -AuthenticationMethod "EAPTLS" -RadiusRootCert "C:\Users\Test\Desktop\VpnProfileRadiusCert.cer"
+PS C:\> New-AzureRmVpnClientConfiguration -ResourceGroupName "ContosoResourceGroup" -Name "ContosoVirtualNetworkGateway" -AuthenticationMethod "EAPTLS" -RadiusRootCertificateFile "C:\Users\Test\Desktop\VpnProfileRadiusCert.cer"
 ```
 
 This cmdlet is used to create a VPN client profile zip file for "ContosoVirtualNetworkGateway" in ResourceGroup "ContosoResourceGroup". The profile is generated for a pre-configured radius server that is configured to use "EAPTLS" authentication method with the VpnProfileRadiusCert certificate file.