I got curious about why we had these invalid links. The information about module documentation was previously part of the KDoc page, and the link was https://kotlinlang.org/docs/reference/kotlin-doc.html#module-and-package-documentation.

If you follow that link, it'll redirect to https://kotlinlang.org/docs/kotlin-doc.html - so the /reference/ part was removed at some point, and it looks like the old link redirects to the new location to preserve compatibility.

However, when the information about module documentation was moved to a separate page, we changed only the name of the html file (kotlin-doc.html -> dokka-module-and-package-docs.html), without altering the base of the link itself. Thus a bug was born 😅

cc @sarahhaggarty JFYI :)