This page isn't fleshed out yet, sorry! Feel free to send PRs to make it better.
In order to build the website you'll need to install Node.js and Git.
Then run:
git clone https://github.com/ReactJSGirls/reactjsgirls-docs.git
cd reactjsgirls-docs
npm install
You can then start the development server by running:
npm run dev
Then open http://localhost:3000 in your browser.