Revamp LICENSE file

- Also tweak the introduction a little bit.

LICENSE.md

@@ -0,0 +1,42 @@
+Please note that a significant portion of code was copied, modified
+and merged from Nils Anders Danielsson' library and Agda standard
+library. All code is released under the same BSD3 license.
+
+# Copyright Owners
+
+- My own code:\
+Copyright (c) 2012 Favonia
+
+- [Nils' library](http://www.cse.chalmers.se/~nad/repos/equality/)\
+Copyright (c) 2011-2012 Nils Anders Danielsson
+
+- [Agda stardard library](http://www.cse.chalmers.se/~nad/repos/lib/)\
+Copyright (c) 2007-2012 Nils Anders Danielsson, Ulf Norell, Shin-Cheng
+Mu, Samuel Bronson, Dan Doel, Patrik Jansson, Liang-Ting Chen,
+Jean-Philippe Bernardy, Andrés Sicard-Ramírez, Nicolas Pouillard,
+Darin Morrison, Peter Berry, Daniel Brown, Simon Foster, Dominique
+Devriese, Andreas Abel, Alcatel-Lucent, Eric Mertens, Joachim
+Breitner, Liyang Hu, Noam Zeilberger, Érdi Gergő, Stevan Andjelkovic
+
+# BSD3 License Text
+
+~~~~
+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.
+~~~~

README.md

@@ -1,19 +1,17 @@
 # Introduction
 
 This repository hosts my Agda code for homotopy type theory.
-Homotopy type theory is a new type theory
+Homotopy type theory is a young theory
 seeking the connections between (abstract) homotopy theory,
 type theory and category theory.
 For more information about this theory
 I recommend [this blog](http://homotopytypetheory.org).
 
 # Copyright
 
-Lots of code is copied from [Nil's repository](http://www.cse.chalmers.se/~nad/repos/equality/)
-(with my significant refactoring).
-We both released our code under [BSD 3](http://www.opensource.org/licenses/BSD-3-Clause).
+See `LICENSE.md` for more information.
 Please consider using open-source licenses in your derived work
-to maximize the availability and usefulness, thanks.
+to maximize the availability and usefulness.
 
 # Documentation