bump LICENSE year - frontends - front-ends for some sites (experiment)
   DIR Log
   DIR Files
   DIR Refs
   DIR README
   DIR LICENSE
       ---
   DIR commit f5ff0bca3e15337500f66278f8cdb03fe8242c3f
   DIR parent 19e95a36d92608937aa5260be84dc8c295154a57
  HTML Author: Hiltjo Posthuma <hiltjo@codemadness.org>
       Date:   Fri,  2 Jul 2021 18:06:26 +0200
       
       bump LICENSE year
       
       Diffstat:
         M LICENSE                             |       2 +-
       
       1 file changed, 1 insertion(+), 1 deletion(-)
       ---
   DIR diff --git a/LICENSE b/LICENSE
       @@ -1,6 +1,6 @@
        ISC License
        
       -Copyright (c) 2020 Hiltjo Posthuma <hiltjo@codemadness.org>
       +Copyright (c) 2020-2021 Hiltjo Posthuma <hiltjo@codemadness.org>
        
        Permission to use, copy, modify, and/or distribute this software for any
        purpose with or without fee is hereby granted, provided that the above