It seems Facebook always use this to open their projects.
Build optimized websites quickly, focus on your content | Docusaurus
Save time and focus on your project's documentation. Simply write docs and blog posts with Markdown/MDX and Docusaurus will publish a set of static HTML files ready to serve. You can even embed JSX components into your Markdown thanks to MDX. Extend or customize your project's layout by reusing React.
I've created the website with this.
Verge - A state management library for iOS | Verge
A performant flux library for iOS App - SwiftUI / UIKit Verge is designed for use from small and supports to scale. Setting Verge up quickly, and tune-up when we need it. Does flux have a good performance? The performance will be the worst depends on how it is used.Verge automatically tune-up and shows us how we could gain a performant.
Gatsby is an awesome tool to create statically generated website. It's powered by React and GraphQL
We can find a lot of themes which created by Gatsby's community.