Update AUTHORS.md

AUTHORS.md

@@ -5,8 +5,8 @@ The DuMux Lecture contributors are
 | 2017-2018       | Sina Ackermann         |
 | 2008-2012       | Katherina Baber        |
 | 2015            | Martin Beck            |
-| 2022-2023       | Ivan Buntic            |
-| 2012-2021, 2023 | Holger Class           |
+| 2022-2024       | Ivan Buntic            |
+| 2012-2021, 2023-2024 | Holger Class           |
 | 2018-2021       | Edward 'Ned' Coltman   |
 | 2012-2013       | Melanie Darcis         |
 | 2018-2020       | Simon Emmert           |
@@ -17,10 +17,11 @@ The DuMux Lecture contributors are
 | 2016-2020, 2022 | Katharina Heck         |
 | 2015-2016, 2019 | Johannes Hommel        |
 | 2012            | Johannes Irtenkauf     |
-| 2020, 2022-2023 | Mathis Kelm            |
+| 2024            | Leon Keim              |
+| 2020, 2022-2024 | Mathis Kelm            |
 | 2021-2022       | Stefanie Kiemle        |
 | 2014            | Alexander Kissinger    |
-| 2015-2023       | Timo Koch              |
+| 2015-2024       | Timo Koch              |
 | 2018            | Melanie Lipp           |
 | 2011            | Andreas Lauser         |
 | 2023            | Hamza Oukili           |
@@ -29,9 +30,9 @@ The DuMux Lecture contributors are
 | 2018-2020, 2022 | Theresa Schollenberger |
 | 2012-2015       | Nicolas Schwenck       |
 | 2018            | Gabriele Seitz         |
-| 2020            | Maziar Veyskarami      |
+| 2020,2024       | Maziar Veyskarami      |
 | 2012-2014       | Lena Walter            |
-| 2022            | Yue Wang               |
+| 2022, 2024      | Yue Wang               |
 | 2020            | Felix Weinhardt        |
 | 2015-2020       | Kilian Weishaupt       |
 | 2018            | Kai Wendel             |