Update src/pages/docs/argo-cd/instances/terraform-bootstrap.md

Co-authored-by: Steve Fenton <99181436+steve-fenton-octopus@users.noreply.github.com>

Author: ATGardner

src/pages/docs/argo-cd/instances/terraform-bootstrap.md

@@ -421,7 +421,7 @@ output "get_argocd_token" {
 }
 ```
 
-<a name="terraform-tfvars"></a>
+## Terraform tfvars
 
 ```yaml
 # terraform.tfvars.example