Fixes one last oversight in roadmap image
Fixes one last oversight in roadmap image

Signed-off-by: Jasper Berghoef <0e3fc087b1c79cc47a1667b6269f284f75b04e2d@gmail.com>

LabD/wagtail-personalisation,LabD/wagtail-personalisation,LabD/wagtail-personalisation