Update devtest-lab-configure-vnet.md

Fix broken link.

Author: v-thepet

articles/devtest-labs/devtest-lab-configure-vnet.md

@@ -67,5 +67,5 @@ If you allowed VM creation in one of the subnets, you can now create lab VMs in
 
 ## Next steps
 
-- For more information about how to set up, use, and manage virtual networks, see the [Azure virtual network documentation](/azure/virtual-network/index.yml).
+- For more information about how to set up, use, and manage virtual networks, see the [Azure virtual network documentation](/azure/virtual-network).
 - You can deploy [Azure Bastion](https://azure.microsoft.com/services/azure-bastion) in a new or existing virtual network to enable browser connection to your lab VMs. For more information, see [Enable browser connection to DevTest Labs VMs with Azure Bastion](enable-browser-connection-lab-virtual-machines.md).