the term used in the paper was manipulation rather than treatment
 added material from https://github.com/swcarpentry/2012-04-02_UChicago/ on python
as recommended by Aleksandra Pawlik (thanks Aleksandra!)
customised to me
minor typo and presenter name change
added some excercises
cleaning up repo
seemed to be a duplicate file
updated with excercises
 cleaning up duplicates
updated with an exercise
tidy duplicates
updated with a function call to make things clearer
adding more details on functions
added some more on many arguments, keywords args
 rid of duplicates
minor typos
adding slides - some will need re-working
some updates as default values and variable arguments can be mixed you just have to be careful about order
corrections from jc
 minor typo