Clarify (c) ownership

hynek · hynek · commit 899497f165b3 · 2022-07-28T09:33:00.000+02:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Hynek Schlawack
+Copyright (c) 2015 Hynek Schlawack and the attrs contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
