Add shortcut to our new gitea instance

dotfiles/config/bmo/wish.ini

     fas     = https://admin.fedoraproject.org/accounts/user/view/amahdal
     fcopr   = https://copr.fedorainfracloud.org/coprs/amahdal
     g       = http://www.google.com/
+    gvc     = https://gitea.vornet.cz/
     gh      = https://www.github.com/
     hb      = http://hastebin.com/
     lh      = http://localhost/