eip1559: add requirements.txt

[veox]

Only tried running eip1559.ipynb. Other files may have other reqs.

JIC, running in a virtualenv requires setting up a custom Jupyter kernel.

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FTR, at the time of submission, the package versions were:

cadCAD==0.3.1
jupyter==1.0.0
seaborn==0.10.1

[barnabemonnot]

This is useful, my preferred approach is to use pipenv and have a different environment for each project. I forgot to include the Pipfile though here, but yes, you do need some kind of jupyter install to run it (I use jupyterlab personally). Not the most elegant solution but for the sake of reproducibility it's the best I found so far. Will accept the PR!