update LICENSE copyright

Author: coolrc136

README.md

@@ -3,4 +3,18 @@
 lmap (LinuxHub's Nmap) is the nmap next generation pro plus max, made by 浪神 (from THE GREAT [LinuxHub](https://github.com/LinuxHub-Group)).
 
 # LICENSE
-[GNU GENERAL PUBLIC LICENSE v3.0](LICENSE)
+
+    Copyright (C) <2021>  <LinuxHub-Group>
+
+    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 3 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, see <https://www.gnu.org/licenses/>.