Merge branch 'update/contributions-3.6' into 'master'

[doc] update license

See merge request !3308

LICENSE.md

@@ -37,6 +37,7 @@ Copyright holders
 | 2013-2022  | Timo Koch                  |
 | 2020-2021  | Tim Jupe                   |
 | 2020-2022  | Mathis Kelm                |
+| 2022       | Leon Keim                  |
 | 2017       | Kata Kurgyis               |
 | 2018-2022  | Theresa Schollenberger     |
 | 2008-2012  | Andreas Lauser             |
@@ -69,7 +70,8 @@ Copyright holders
 | 2020-2022  | Yue Wang                   |
 | 2018-2022  | Felix Weinhardt            |
 | 2015-2022  | Kilian Weishaupt           |
-| 2010-2011  | David Werner               |
+| 2022       | Kai Wendel                 |
+| 2010-2011,2022  | David Werner          |
 | 2019-2022  | Roman Winter               |
 | 2015       | Hao Wu                     |
 | 2020-2022  | Hanchuan Wu                |