Well, I agree. The title was originally just `realtime-collaboration-example` (as the URL says), but someone said "like google docs then", and I thought why not. If I had to name just one feature of google docs it would be the shared document.

Edit: Also, the HN title was edited by a HN mod, the title I used to post here was "Show HN: Basic Google Docs clone in Kotlin with WebSockets (tutorial)"