See a blog post about it.
The intended audience there was genpop & the IPFS-aware. If, however, you're more of a browser person, the explainer might make more sense to you. Maybe.
Also, slides for a BlinkOn lightning talk.
For info on how to use the library outside of Chromium, see its readme. See also the Doxygen docs.
See doc/original_design.md for original intent, and a reasonable overview of the big picture.
See doc/design_notes.md for more detailed notes on some of the more critical features, as-implemented.
See doc/building.md