🚀 Feature

The blog post has a feature of draft tag in frontmatter.
It would be great to have the same option for Doc pages that are under construction - to be able to work on them locally, but not publish via deployment (even unlinked, they are visible in the Algolia search for example).

Have you read the [Contributing Guidelines on issues](https://github.com/facebook/docusaurus/bl

I was just contributing to the docs a few minutes ago and after running

yarn check

got this warning

"The prop value with an expression type of SequenceExpression could not be resolved. Please file issue to get this fixed immediately." .

Thought I'd let you know.

Running ./gradlew lintVanillaRelease on dc41909f75 produces this linter report:

Not sure if it's platform specific or not, but when were running a scan for https://msdn.microsoft.com for fun as mentioned in #27 just noticed muffet.exe using ~7Gb of memory and kept going...

Ideas:

• Set a minimum dimension for images.
• Find a way to detect dimensions before downloading the image.