Example notebooks (#50)

+ minor bug fix

manuscript+supplement/.gitignore

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+venv/
+venv/*
+
+figs/
+figs/*
+
+eeg_data.pkl

manuscript+supplement/README.md

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+# Reproducing results of the `sbijax` manuscript
+
+In order to reproduce the results of the paper, please follow the steps below.
+
+Install a new Python3.11 virtual environment and activate it using:
+
+```shell
+python3.11 -m venv venv
+source venv/bin/activate
+```
+
+Install `sbijax` and all dependencies using:
+```shell
+pip install -r requirements.txt
+```
+
+## Usage with Jupyter notebooks
+
+For each section that contains code and figures, we provide a separate Jupyter notebook.
+All notebooks contain the results and figures shown in the main manuscript.
+
+ To run all experiments using Jupyter, first install a Jupyter kernel:
+```shell
+python -m ipykernel install --name sbi-dev --user
+```
+
+Then call
+```shell
+cd experimental_code
+jupyter lab
+```
+
+This opens Jupyter on your web browser. You can now run any of the three notebooks.
+
+## Usage with Python files
+
+For each section that contains code and figures, we also provide separate Python files.
+
+To execute each and reproduce the results of a section, call:
+```shell
+cd experimental_code/scripts
+python chp3-the_sbi_package.py
+python chp4-examples.py
+python chpx-appendix.py
+```
+
+Calling a Python script creates files in a folder called `fig`.