Update webpack internals documentation
I've been asked a few times to create some documentation for webpack, what we use it for at GitLab, and a general overview of how it works.
Some specific topics:
- how the
webpack-railsgem works - how async chunks are created and loaded, and best practices for code-splitting
- how we utilize CommonsChunkPlugin
- how we build for production (broad overview)
- how the webpack manifest works
- how custom relative-url-root and
GITLAB_CDN_HOSTsettings are honored - an overview of some of the plugins we use, what they do, and why we use them
Any other ideas?