Fixed a few minor spelling errors.
Exercises added.
Merge branch 'NormanDunbar' of https://github.com/NormanDunbar/nclab-textbook-python
Adding Norman Dunbar to authors.
Splitting textbook.tex
Adding cover.
Mention TR-Design
Update
Update
lab.show() -> show()
Leaving out C++ code.
Adding webpage to the repo.
Update
Bootstrapped website.
Some edits.
Adding Samuel to contributors.
Removing PDF from www/
Small changes
Playing with thumbnails
Deleting some files