[Beta] - Can you add the concept of whether setState is async or not under useState documentation?

I think we all have seen a lot of blogs, StackOverflow questions, and different course authors explaining different things. So It's a request from React team to add some advance behind the scene explanation to this under
useState
Also If there is something already available on the Beta website then please share it under this thread.
Thank you
CC: @gaearon @sophiebits

从 issue 中链接的 useState beta 文档页面开始，检查其中是否已经解释了状态更新的时机或异步行为。完成的标准是该页面包含对这一概念清晰、准确的解释，或者链接到 useState 文档中已有的解释。