Disallow versioned docs post-24.0. Versions don't necessarily start with zero anymore! We need these directives so search engines prefer indexing the "latest" URLs instead of version-specific URLs.
Setup (you only need to do this once):
npm install bundle install
Every time you want to run the site:
gulp npm start
Ideally we would not be checking in the css directory and just build it as part of the deploy process.
See CONTRIBUTING.md.