Tutorials with Literate.jl to also get runnable Jupyter notebooks

[ranocha]

Since@ketch created #63 with a Jupyter notebook, I thought it might be nice to provide the possibility to download our tutorials as Jupyter notebooks (or run them in the cloud via mybinder.org). Since Jupyter notebooks are hard to review in GitHub and cannot be rendered nicely via Documenter.jl, it may be nice to write the tutorials once and convert them to the appropriate Markdown/Documenter.jl files and Jupyter notebooks with Literate.jl.

What do you think, @ketch?