--- a
+++ b/LICENSE
@@ -0,0 +1,9 @@
+DeepMod is available under GPLv3.
+
+Copyright (C) <2018>  <Qian Liu/Kai Wang>
+
+DeepMod (refer to as this tool below) 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 with either version 3 of the License, or later version.
+
+This tool 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 tool. If not, please refer to <http://www.gnu.org/licenses/>.