Add license

395a1c09 · David W.H. Swenson · 3d489066 · 395a1c09
Verified Commit 395a1c09 authored Nov 22, 2016 by David W.H. Swenson
--- a/LICENSE
+++ b/LICENSE
+The material in this repository is distributed under the Creative Commons
+Attribution 4.0 International license (CC-BY 4.0).
+
+For a simple, common language description of the terms of this license, see:
+https://creativecommons.org/licenses/by/4.0/
+
+For the full legal terms of the license, see:
+https://creativecommons.org/licenses/by/4.0/legalcode