Description.

This PR mainly concerns additional documentation and provision of code snippets as requested during the paper review process.

Type of change

Select one or more relevant options:

• Bug fix (change which fixes a bug reported in a specific issue)
• New feature (change which adds a feature requested in a specific issue)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (improved documentation for existing functionality in the package)
• Repository update (change related to non-package files or structures in the GitHub repository)

Checklist:

• I have read and understood the contributor guidelines of this project
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I ran all demo notebooks locally and there where no errors