This is a...
Problem: All links at the See Also section of the kubectl CLI page are broken. Noticed that the problem was fixed before in 5789c87, however I couldn't find the files on the repository and that seems to be the cause for the 404 errors on the page.
As for instance related to kubectl top which points to https://kubernetes.io/docs/reference/kubectl/kubectl/kubectl_top.md, but there's no such reference of this file in the website repository.
Proposed Solution: Generate missing .md files with the same description as found on kubectl utility with --help
Page to Update:
https://kubernetes.io/docs/reference/kubectl/kubectl/