Update README copyright to current year (#9566)

diff --git a/README.md b/README.md
index 4d136b13767961fc27f0390d2375b0f2eb027fe7..cfd5a8ae0259160fd0084b42bdb5c19784581a78 100644 (file)
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ Minetest
 
 Minetest is a free open-source voxel game engine with easy modding and game creation.
 
-Copyright (C) 2010-2019 Perttu Ahola <celeron55@gmail.com>
+Copyright (C) 2010-2020 Perttu Ahola <celeron55@gmail.com>
 and contributors (see source file comments and the version control log)
 
 In case you downloaded the source code