Unfortunately, this short link is owned by @michael and I cannot change it. I'll investigate to see if I can change ownership or find some other way to edit it.
FYI – it's actually pointing to http://en.flossmanuals.net/openmrs-guide/ and, for some reason, the "en" subdomain is being redirected to "write"
FYI2 – I've submitted a request for an OpenMRS org account for GitBook, hoping we can migrate to using that service for our documentation, books, and guides in the (near) future. If we can get an org account soon or confirm that books can be transferred from a user account to an org account, then we can try to get GCI studs to help transfer our guides to GitBook.