Update license date

wkeeling · wkeeling · commit a2be05a434a9 · 2021-08-30T19:43:17.000+01:00
diff --git a/LICENSE b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018, Will Keeling
+Copyright (c) 2021, Will Keeling
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
