Updated license and added authors information

Author: chryswoods

AUTHORS

@@ -0,0 +1,16 @@
+The material in this workshop has been produced and kindly donated
+by the following excellent people
+
+Matt Williams     : https://github.com/milliams
+Lester Hedges     : https://github.com/lohedges
+Christopher Woods : https://github.com/chryswoods
+
+It is based on material that was originally developed as part
+of the University of Bristol Research Software Engineering Group's
+Python workshops, e.g.
+
+https://chryswoods.com/intermediate_python
+https://chryswoods.com/python_and_data
+
+The authors are happy for the material to be copied, re-used
+and modified, as long as attribution is maintained (MIT license) 

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2018 CCPBioSim
+Copyright (c) 2018 Matt Williams, Lester Hedges, Christopher Woods
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal