[trivial] Update contributors.

README.md

@@ -52,19 +52,22 @@ Currently, this list is sorted by the last year the person has been
 active, and in case of ties, by the earliest year the person started
 contributing, and finally by last name.
 
-- 2003-2023 Malte Helmert
-- 2008-2016, 2018-2023 Gabriele Roeger
-- 2010-2023 Jendrik Seipp
-- 2010-2011, 2013-2023 Silvan Sievers
-- 2012-2023 Florian Pommerening
-- 2013, 2015-2023 Salomé Eriksson
+- 2003-2024 Malte Helmert
+- 2008-2016, 2018-2024 Gabriele Roeger
+- 2010-2024 Jendrik Seipp
+- 2010-2011, 2013-2024 Silvan Sievers
+- 2012-2024 Florian Pommerening
+- 2013, 2015-2024 Salomé Eriksson
+- 2018-2024 Patrick Ferber
+- 2021-2024 Clemens Büchner
+- 2022-2024 Remo Christen
+- 2023-2024 Simon Dold
+- 2023-2024 Claudia S. Grundke
+- 2024 Tanja Schindler
+- 2024 David Speck
+- 2024 Martín Pozo
 - 2015, 2021-2023 Thomas Keller
-- 2018-2023 Patrick Ferber
 - 2018-2020, 2023 Augusto B. Corrêa
-- 2021-2023 Clemens Büchner
-- 2022-2023 Remo Christen
-- 2023 Simon Dold
-- 2023 Claudia S. Grundke
 - 2023 Victor Paléologue
 - 2023 Emanuele Tirendi
 - 2021-2022 Dominik Drexler