Add AWS SaaS ML tools resources

この issue には説明がありません。

The issue body does not identify a file, section, entry point, or test, so first inspect the repository structure and existing resource lists to find where AWS resources belong. Done would mean adding the requested AWS SaaS machine-learning tools resources in the appropriate list, but the issue does not define which resources or format to use.

索引モデルが issue の本文から書いたものです。