docs: update AUTHORS file

Signed-off-by: Karel Zak <kzak@redhat.com>

AUTHORS

@@ -126,6 +126,7 @@ CONTRIBUTORS:
       Andreas Bießmann <biessmann@corscience.de>
       Andreas Dilger <adilger@sun.com>
       Andreas Henriksson <andreas@fatal.se>
+      Andreas Hindborg <andreas.hindborg@wdc.com>
       Andreas Schwab <schwab@linux-m68k.org>
       Andreas Vogel <Andreas.Vogel@anvo-it.de>
       Andrew G. Morgan <morgan@kernel.org>
@@ -289,6 +290,7 @@ CONTRIBUTORS:
       edupont <emeric.dupont@agol.org>
       Egor Chelak <egor.chelak@gmail.com>
       Elan Ruusamäe <glen@delfi.ee>
+      ellcs <me@ellcs.de>
       Elliott Mitchell <ehem+util-linux@drgnwing.com>
       Eric Biggers <ebiggers@google.com>
       Eric Desrochers <eric.desrochers@canonical.com>
@@ -385,6 +387,7 @@ CONTRIBUTORS:
       Huang Shijie <shijie@os.amperecomputing.com>
       HUANG Wei <weih@opera.com>
       Hugh Dickins <hughd@google.com>
+      Hugo Osvaldo Barrera <hugo@barrera.io>
       Humberto Zuazaga
       Huschaam Hussain <Huschaam.Hussain@hp.com>
       Hushan Jia <hushan.jia@gmail.com>