Using jupyter notebooks for documenation

[cehbrecht]

We can use notebooks for showing examples on howto use owslib. These can be rendered in the sphinx docu using nbsphinx.

Example from pangeo: https://gallery.pangeo.io/repos/pangeo-data/pangeo-tutorial-gallery/

[cehbrecht]

More examples:

• https://github.com/geopython/geopython-workshop/blob/master/workshop/jupyter/content/notebooks/10-remote-data.ipynb
• https://anitagraser.com/2021/02/11/introducing-the-open-data-analysis-ogd-at-lab/