Update NanoVNASaver/Windows/TDR.py

NanoVNASaver/Windows/TDR.py

@@ -2,7 +2,7 @@
 #
 #  A python program to view and export Touchstone data from a NanoVNA
 #  Copyright (C) 2019, 2020  Rune B. Broberg
-#  Copyright (C) 2020 NanoVNA-Saver Authors
+#  Copyright (C) 2020, 2021 NanoVNA-Saver Authors
 #
 #  This program is free software: you can redistribute it and/or modify
 #  it under the terms of the GNU General Public License as published by