Fix how doc string looks in the documentation

[MOchiara]

Original author part looks funcky and not nicely as parameters and returns

[callumrollo]

Not sure how easy that's gonna be. Parameters and Returns are established standard terms which is why they get the pretty formatting. You'd likely need to dig pretty deep in the sphinx docs engine to get it to treat Original author the same way. I think it looks fine as is tbh!

[MOchiara]

Yeah that is what we thought with Eleanor actually! I can have a look and if we do not fix it, it is also fine as it is

[eleanorfrajka]

What about finding another standard term that is applicable? Something like

Notes
------
Original author: Chiara Monforte
Method update: X Y

Standard terms for docstrings appear to include singular Parameters, Yields or Returns, Other Parameter, Raises (for errors), Sea Also, Note or Notes, References, Example/Examples, (https://developer.lsst.io/python/numpydoc.html)

Other conventions also possibly have Attributes, Todo? (https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html)

(Note to self: Some basic info on docstrings: https://www.geeksforgeeks.org/python-docstrings/).

[MOchiara]

I think Eleanor suggestion with notes and then the author works well