freeCodeCamp’s academic honesty policy reads:
"Aside from using open source libraries such as jQuery and Bootstrap, and short snippets of code which are clearly attributed to their original author, 100% of the code in my projects was written by me, or along with another camper with whom I was pair programming in real time.
Based on the wording, you could argue that the content itself isn’t code, and there’s plenty of existing documentation out there under open-source licenses — just make sure to attribute it properly.
That said, I agree with @Gunjan:
Why not treat it as an opportunity to solidify some concepts you’ve already learned? Write your own documentation (a tutorial, API reference, etc.) on something you learned recently.