Preview Site or Pages Before Publish

[Kaisoo8812]

I would like to preview the pages and sites that I've been editing before publishing them.
Since there's no Preview function, I have to publish the site to see what it's really like in users' perspectives.
Sometimes we need to test out the document arrangement, and we have to publish and unpublish to see the final results, and this led to my account was automatically blocked by GitBook system.
Hope you would consider adding this feature, thanks!