Gravstrap plugin documentation (solved)

Hi, I want to use gravstrap plugin, but the doc page seems to be gone: (link)
Any clues where to find documentation?

Project github page:

Cheers

Edit: OK it’s just a link problem, docs are there http://diblas.net/plugins/gravstrap
How do I delete a topic?

I made a PR to fix the wrong link https://github.com/giansi/gravstrap/pull/31