FreeBSD 11.2-RC1 announce link is broken

[Yuval Pavel Zholkover]

Hello,

The announce link at
https://www.freebsd.org/news/newsflash.html#event20180602:01 is pointing at
the wrong url:
https://lists.freebsd.org/pipermail/freebsd-stable/2018-May/089053.html
instead of
https://lists.freebsd.org/pipermail/freebsd-stable/2018-June/089053.html
(May vs. June).

Thanks!