Merge branch 'feature/update-license.md' into 'master'

Update LICENSE.md

See merge request !2336

LICENSE.md

@@ -12,6 +12,7 @@ Copyright holders
 | 2013-2020  | Beatrix Becker             |
 | 2014       | Markus Blatt               |
 | 2010       | Felix Bode                 |
+| 2020       | Ivan Buntic                |
 | 2018-2020  | Samuel Burbulla            |
 | 2007-2011  | Yufei Cao                  |
 | 2018-2020  | Edward 'Ned' Coltman       |
@@ -35,6 +36,7 @@ Copyright holders
 | 2012-2017  | Alexander Kissinger        |
 | 2013-2020  | Timo Koch                  |
 | 2020       | Tim Jupe                   |
+| 2020       | Mathis Kelm                |
 | 2017       | Kata Kurgyis               |
 | 2018-2020  | Theresa Kurz               |
 | 2008-2012  | Andreas Lauser             |
@@ -62,11 +64,13 @@ Copyright holders
 | 2019       | Andrea Vescovini           |
 | 2020       | Maziar Veyskarami          |
 | 2010-2014  | Lena Walter                |
+| 2020       | Yue Wang                   |
 | 2018-2020  | Felix Weinhardt            |
 | 2015-2020  | Kilian Weishaupt           |
 | 2010-2011  | David Werner               |
 | 2019-2020  | Roman Winter               |
 | 2015       | Hao Wu                     |
+| 2020       | Hanchuan Wu                |
 | 2008-2013  | Markus Wolff               |
 | 2013       | Tianyuan Zheng             |