Corrected the PublicSubnetName argument (#13417)

Probably there is typo error where both private & public subnet names are pointing to same privSubnet object, this has been corrected.

Author: madurais-msft

src/Databricks/help/New-AzDatabricksWorkspace.md

@@ -44,7 +44,7 @@ PS C:\> $networkSecurityGroup = New-AzNetworkSecurityGroup -ResourceGroupName te
 PS C:\> $privSubnet = New-AzVirtualNetworkSubnetConfig -Name priv-sub -AddressPrefix "10.0.1.0/24" -NetworkSecurityGroup $networkSecurityGroup -Delegation $dlg
 PS C:\> $pubSubnet = New-AzVirtualNetworkSubnetConfig -Name pub-sub  -AddressPrefix "10.0.2.0/24" -NetworkSecurityGroup $networkSecurityGroup -Delegation $dlg
 PS C:\> $testVN = New-AzVirtualNetwork -Name testvn -ResourceGroupName testgroup -Location eastus -AddressPrefix "10.0.0.0/16" -Subnet $privSubnet,$pubSubnet
-PS C:\> New-AzDatabricksWorkspace -Name databricks-test-with-custom-vn -ResourceGroupName testgroup -Location eastus -VirtualNetworkId $testVN.Id -PrivateSubnetName $privSubnet.Name -PublicSubnetName $privSubnet.Name -Sku standard
+PS C:\> New-AzDatabricksWorkspace -Name databricks-test-with-custom-vn -ResourceGroupName testgroup -Location eastus -VirtualNetworkId $testVN.Id -PrivateSubnetName $privSubnet.Name -PublicSubnetName $pubSubnet.Name -Sku standard
 
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