More licensing.

README.md

 Arduino sketch and evdev driver for Linux to implement a keyboard over I2C with an interrupt line.
+
+# License
+Copyright (C) 2018  Forest Godfrey
+
+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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

linux_driver/README.md

@@ -6,5 +6,19 @@ anywhere.  It uses Platform Data instead of Device Tree Overlays.  This is done
 i2c bus used in the Sierra Wireless mangOH that this was tested with is off of an I2C switch
 and they chose not to the Device Tree.
 
-This software is Copyright 2018 Forest Godfrey and is released as free software under the
-GNU General Public License Version 2.  See COPYING file for license details.
+# License
+Copyright (C) 2018  Forest Godfrey
+
+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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.