Corrected link to discussion board on deleted release pages
Corrected link to discussion board on deleted release pages

It used to link to /t/r+, but we don't have discussion boards for
releases, so lets just link to the board for the first related VN
of the release instead.

morkt/vndb,christian-roggia/vndb,morkt/vndb,christian-roggia/vndb,morkt/vndb,erengy/vndb,morkt/vndb,erengy/vndb,erengy/vndb,morkt/vndb,christian-roggia/vndb