Bug 29123: Add Dataly Tech to About page

Bug 29123: Add Dataly Tech to About page

This patch adds Dataly Tech to the list of "Contributing companies
and institutions" in the About page.

Test plan:
1) View the About page, notice how Dataly Tech is missing
2) Apply this patch
3) Reload the About page, this time "Dataly Tech, Greece" is listed

Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>