aws.amazon.commachine-learning/pricing link is broken

'Amazon Machine Learning service' is now deprecated and is replaced by Amazon SageMaker. You can see the warning on the top of the page you shared in the post or this is from the documentation page - "We are no longer updating the Amazon Machine Learning (Amazon ML) service or accepting new users for it. This documentation is available for existing users, but we are no longer updating it."

And for SageMaker, you can see the pricing here. Real time predictions (equivalent to what your posted link was suggesting) on SageMaker documentation can be found here.

Feedback on AWS official documentation can be provided via the feedback link in the upper right corner of the document, for example.