public.crt needs sometimes to have a chain certificate, this PR
explains how to construct public.crt when certificate are issued
by a certificate authority.
This and the link for downloading Minio server at other places in the docs seems to be broken. I suppose this happened while updating the name of the page (which updated the url) in Doctor docs.
Might be nice for Doctor to update internal links if the name of a page is changed in a background job.
