Exactly. danb35 is correct, the facts aren't copyrightable... but the prose describing the ratelimits is.
It would fall under fair-use to cite a paragraph as-is, and one could argue that the usage in my context is fair use as well. However, I'm still talking about copy/pasting the entirety of a post as-is... so I'd rather have explicit permission.
The reason why I brought up the CC/Attribution is because that essentially requires a link back to the documentation and (depending on the license) doesn't allow for changes to the text.