Update LICENSE.md

LICENSE.md

@@ -1,17 +1,23 @@
-The PValueAdjust.jl package is licensed under GPL v2:
+The PValueAdjust.jl package is licensed under the MIT Expat License:
 
 > Copyright (c) 2014: Dirk Schumacher.
-> 
-> 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.
+>
+> Permission is hereby granted, free of charge, to any person obtaining
+> a copy of this software and associated documentation files (the
+> "Software"), to deal in the Software without restriction, including
+> without limitation the rights to use, copy, modify, merge, publish,
+> distribute, sublicense, and/or sell copies of the Software, and to
+> permit persons to whom the Software is furnished to do so, subject to
+> the following conditions:
+>
+> The above copyright notice and this permission notice shall be
+> included in all copies or substantial portions of the Software.
+>
+> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+> EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+> IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+> CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+> TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+> SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+