Add the licence back

Author: bnmnetp

LICENSE

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+The following license applies to all files in this repository, with these exceptions:
+
+-   CSS and JS files included by this library contain their own, third-party licenses.
+-   The Handsontable component is commercial software; if you make a copy of this software, you must contact https://handsontable.com/ to verify your compliance with their license.
+-   The text of "How to Think Like a Computer Scientist", which is published under the GNU Documentation License
+-   The text of "Problem Solving with Algorithms and Data Structures using Python", which is (c) Franklin Beedle and Associates.
+
+
+The MIT License (MIT)
+
+Copyright (c) 2014 Brad Miller, David Ranum.
+
+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.