Bug 7143: Update about page for new devs

Bug 7143: Update about page for new devs

Mazen Khallaf
Amy King
Catherine Ma
James O'Keeffe
Victoria Faafia

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit a57278f39b8c5b7a82b21671f266dbf32e2d41a0)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 9016c317f5cb1c5ce36b9dee66564336f0fec220)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
(cherry picked from commit 816e6d14cad68a0b031b0b9936f47e8072139407)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>