Merge pull request #3 from smichnowicz/master

simon modified

Merge pull request #2 from stu2/master

add markdown comments and screenshots

Stuart as author

Added Stuart's alpha ver of his lesson

Python checkpoints shouldn't be committed

Added Simon's data manipulation lesson and refactored into subfolders

Richard Beare picked up some silly errors in the image part

Fixed some variable issues with the last example (images)

An intentional error for demo purposes was stopping the notebook from executing

Instructions

Alpha version of the workshop.

Some meaningful readme

first commit