* docs: design spec for Dokka HTML API reference on GitHub Pages (#32)
* docs: implementation plan for Dokka API reference on GitHub Pages (#32)
* build: migrate Dokka 1.9.20 -> 2.2.0 (DGP v2) (#32)
* docs: aggregate all modules into one Dokka HTML site with source links (#32)
* docs: add Dokka source links to serialization/coroutines/compose modules (#32)
* ci: add docs workflow to deploy Dokka HTML to GitHub Pages (#32)
* docs: link the published API reference from the README (#32)
