The links for ssh target object and WinRM no longer work. Looks like they changed when https://github.com/puppetlabs/bolt/commit/629f8e22f9e2e3816b86a4b416bdef7b52d448db was merged. We should make sure to update those links.
I don't understand the changes made in the linked PR enough to feel confident to know what to link to, otherwise I'd put up a PR.