When browsing the help references for various systemd features, it was
observed that the `systemd-rfkill` link was dead (originally pointing to
`systemd-rfkill@.service.html`; now `systemd-rfkill.service.html`). This
commit corrects this link, as well as updates all other links to https
(since freedesktop.org now force redirects to https).
Signed-off-by: James Knight <james.d.knight@live.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
8520da532b