Update build-image-with-packer.md

Author: divargas-msft

articles/virtual-machines/linux/build-image-with-packer.md

@@ -60,7 +60,7 @@ You use the output from these two commands in the next step.
 
 ## Define Packer template
 
-To build images, you create a template as a JSON file. In the template, you define builders and provisioners that carry out the actual build process. Packer has a [provisioner for Azure](https://www.packer.io/docs/builders/azure.html) that allows you to define Azure resources, such as the service principal credentials created in the preceding step.
+To build images, you create a template as a JSON file. In the template, you define builders and provisioners that carry out the actual build process. Packer has a [provisioner for Azure](https://developer.hashicorp.com/packer/plugins/builders/azure) that allows you to define Azure resources, such as the service principal credentials created in the preceding step.
 
 Create a file named *ubuntu.json* and paste the following content. Enter your own values for the following parameters:
 
@@ -89,7 +89,7 @@ Create a file named *ubuntu.json* and paste the following content. Enter your ow
     "os_type": "Linux",
     "image_publisher": "Canonical",
     "image_offer": "UbuntuServer",
-    "image_sku": "16.04-LTS",
+    "image_sku": "20.04-LTS",
 
     "azure_tags": {
         "dept": "Engineering",
@@ -129,7 +129,7 @@ source "azure-arm" "autogenerated_1" {
   client_secret                     = "0e760437-bf34-4aad-9f8d-870be799c55d"
   image_offer                       = "UbuntuServer"
   image_publisher                   = "Canonical"
-  image_sku                         = "16.04-LTS"
+  image_sku                         = "20.04-LTS"
   location                          = "East US"
   managed_image_name                = "myPackerImage"
   managed_image_resource_group_name = "myResourceGroup"