Some internal links had the wrong syntax: they were formatted as external links.
As a result, they redirected the user to the outdated Open Source documentation.
This commit fixes that bug.
Fixes https://github.com/scylladb/scylladb/issues/25899
Closes scylladb/scylladb#27905
(cherry picked from commit 375479d96c)
Closes scylladb/scylladb#28003