Add License GNU V3 reference

Author: RDCH106

README.md

@@ -11,6 +11,8 @@ it under the terms of the GNU General Public License as published by
 the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.
 
+[GNU General Public License v3.0](https://github.com/ingran/ikusi-makusi/blob/master/LICENSE)
+
 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