Looking at the code, it looks like that's a work in progress. You can start an http server and use a browser to browse and read your memos. It also looks like you can query for particular memos like you do in the CUI.

It could very well be that the author has plans to be able to create or edit memos using web calls, and pave the way for a browser based memo app.

It references some templates which I don't see in the repo, so not sure how far along it is. Maybe those are included in one of the dependencies.