docs: AUTHORS update
docs: AUTHORS update

Signed-off-by: Lars Holm Nielsen <7eaffca9f7cd98839b5821d0d23e09ff764b82cd@cern.ch>

inveniosoftware/invenio-records,inveniosoftware/invenio-records,tiborsimko/invenio-records,tiborsimko/invenio-records