What happened to the documentation on github - frappe doc moved so link changed

https://frappe.github.io/frappe/user/en/bench/guides/lets-encrypt-ssl-setup.html

in fact it all looks broken and bad timing for me as I’m moving the site…

Did you try the wiki?

Here’s the new link

https://frappe.io/docs/user/en/bench/guides/lets-encrypt-ssl-setup

The documentation for frappe has moved to frappe.io

ERPNext documentation has moved to erpnext.org