some updates and copy memo

src/my-ttgo-watch.ino

@@ -1,11 +1,26 @@
+/****************************************************************************
+              my-ttgo-watch.ino
+
+    Tu May 22 21:23:51 2020
+    Copyright  2020  Dirk Brosswick
+ *  Email: dirk.brosswick@googlemail.com
+ ****************************************************************************/
+ 
 /*
-Copyright (c) 2019 lewis he
-This is just a demonstration. Most of the functions are not implemented.
-The main implementation is low-power standby. 
-The off-screen standby (not deep sleep) current is about 4mA.
-Select standard motherboard and standard backplane for testing.
-Created by Lewis he on October 10, 2019.
-*/
+ *  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
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
 #include "config.h"
 #include <Arduino.h>