express-static prefers directories over files when using the extensions
option, meaning an extensionless route will always route to the
directory instead of the file (expressjs/serve-static#138).
* Add npm scripts for installing/building docusaurus from main project
* Set base url based on ENV
* Build docsite in docker image
* Add link to doc in dashboard and link to github
* Update nodejs install instructions to include doc build command
* Update GH pages workflow to use correct base url
* Add hint page to main app when docs are not built