[8u, 11u] Wiki Page updates

[Langer, Christoph]

Hi Ao Qi,

> One minor issue, on 8u page [1], I saw:
> 
>   JDK 8u222 timeline
>     March 2019 jdk11u-dev forest open
>     ...
>  JDK 8u232 timeline
>     June 2019 jdk11u-dev forest open
>     ..
> 
> Is jdk11u-dev a copy-paste typo?

Good catch. Yes, it was a copy-paste typo. Fixed it.

Best regards
Christoph