@rhythmic-branch-12845 since that getting started guide has been written, the objects themselves have been changed, so we'll update them. I've created this issue here:
https://github.com/pulumi/docs/issues/7362
Thanks for bringing it to our attention
the fact it's deprecated means it may be removed in future provider versions, so you can safely use it and ignore the error message if you like, but it's valid to say we should point users to the new resource with a url. I've opened this issue for that: https://github.com/pulumi/pulumi-aws/issues/1910