[docs] add docs for the PR: 1610

[hsluoyz]

Improve the related docs page based on the newly merged PR: apache/casbin#1610
You should write high-quality human-like docs for a modern OSS software. Don't write in the GPT-flavor. Don't write too long, keep it tidy docs. Don't use itemized list to describe things like "Use Cases", "Best practice" or "what it can do"
don't change yarn.lock
Avoid adding new docs pages, try the best to add content to the suitable existing docs pages
Don't add too long text, keep it short and to the point
Don't add the docs in a template like one section name and one text paragraph. You need to organize the content to be user-friendly and not boring for users to read