Small version issue in links on Jessie installer page

[Michaël Todorovic <michael.todorovic@outlook.com>]

Hello,

I need to install Jessie so I went to https://www.debian.org/releases/jessie/debian-installer/

8.9 is the latest revision but links to ISOs are pointing to 8.8.

I thought you may want to fix this little issue :)

Michael