lock down wiki?

[yoshuawuyts]

not sure if it can be locked down, but just noticed someone edited it 6 weeks ago and it ain't looking great (e.g. all content has been erased)

https://github.com/Raynos/mercury/wiki/ms-office-1-8OO-290-5189--microsoft-office-outlook

pretty sure wiki's can be git cloned and then restored, but not sure what to do about preventing this