Broken tutorial links - https://docs.sumerian.amazonaws.com/tutorials/create/intermediate/custom-clothing/

Hello good morning, a few months ago you could access the documentation of the Amazon Sumerian service, specifically tutorials, such as: https://docs.sumerian.amazonaws.com/tutorials/create/intermediate/custom-clothing/ however today Nowadays these links are below, I would like to know if they moved from place?, and on the other hand, to know if the Amazon Sumerian service will disappear?, I see that it has less and less diffusion, thanks in advance.