removed license from the README

Most the files are under the GPL license, and some under MIT, and CC0. The core of SingleFile is under AGPL. See each files for more info.

README.MD

@@ -61,21 +61,3 @@ Please follow these steps if you find an unknown issue:
 - Russian translation done by rstp14 (https://github.com/rstp14)
 
 Suggestions are welcome :)
-
-## License
-```
-SingleFile is free software: you can redistribute it and/or modify
-it under the terms of the GNU Lesser General Public License as published by
-the Free Software Foundation, either version 3 of the License, or
-(at your option) any later version.
-
-SingleFile 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 Lesser General Public License for more details.
-
-You should have received a copy of the GNU Lesser General Public License
-along with SingleFile.  If not, see <http://www.gnu.org/licenses/>.
-
-SingleFile (c) 2010-2018 Gildas Lormeau
-```