fixed links

Author: TomArcherMsft

articles/terraform/index.yml

@@ -28,7 +28,7 @@ landingContent:
           - text: AzureRM provider versions 
             url: provider-version-history-azurerm-4-0-0-to-current.md
           - text: Terraform Microsoft Graph provider
-            url: /templates/terraform/reference/v1.0/overview
+            url: /graph/templates/terraform/reference/v1.0/overview
       - linkListType: architecture
         links:
           - text: Terraform AzureRM Provider

articles/terraform/toc.yml

@@ -545,7 +545,7 @@
     - name: Azure module registry
       href: https://registry.terraform.io/modules/Azure
     - name: Terraform Microsoft Graph provider
-      href: /templates/terraform/reference/v1.0/overview
+      href: /graph/templates/terraform/reference/v1.0/overview
     - name: Terraform Azure Provider
       href: https://aka.ms/terraform
     - name: Terraform AzAPI Provider