Updating minor issues

Author: JocaPC

samples/manage/azure-sql-db-managed-instance/attach-jumpbox/attachJumpbox.ps1

@@ -173,7 +173,7 @@ If($false -eq $subnets.Contains($managementSubnetName))
     $managementSubnetPrefix = CalculateNextAddressPrefix $virtualNetwork 28
 
     $virtualNetwork.AddressSpace.AddressPrefixes.Add($managementSubnetPrefix)
-    Add-AzureRmVirtualNetworkSubnetConfig -Name Management -VirtualNetwork $virtualNetwork -AddressPrefix $managementSubnetPrefix | Out-Null
+    Add-AzureRmVirtualNetworkSubnetConfig -Name $managementSubnetName -VirtualNetwork $virtualNetwork -AddressPrefix $managementSubnetPrefix | Out-Null
 
     SetVirtualNetwork $virtualNetwork
     Write-Host "Added subnet into VNet." -ForegroundColor Green

samples/manage/azure-sql-db-managed-instance/attach-jumpbox/azuredeploy.json

@@ -55,7 +55,7 @@
     },
     "resources": [
         {
-            "name": "[variables('virtualMachineName')]",
+            "name": "[parameters('virtualMachineName')]",
             "type": "Microsoft.Compute/virtualMachines",
             "apiVersion": "2018-06-01",
             "location": "[parameters('location')]",
@@ -104,7 +104,7 @@
                   "location": "[parameters('location')]",
                   "apiVersion": "2018-06-01",
                   "dependsOn": [
-                    "[concat('Microsoft.Compute/virtualMachines/', variables('virtualMachineName'))]"
+                    "[concat('Microsoft.Compute/virtualMachines/', parameters('virtualMachineName'))]"
                   ],
                   "tags": {
                     "displayName": "SetupChocolatey"