The only thing the documentation currently says about docstrings is: *Use google [docstrings](https://sphinxcontrib-napoleon.readthedocs.io/en/latest/example_google.html) and use Markdown.* I have been following this but generally we don't and I have been getting comments on this. For example, we should not have a summary line at the top and space pad single line docstrings (https://gitlab.mpcdf.mpg.de/nomad-lab/nomad-FAIR/-/merge_requests/938#note_165367). And I guess the most obvious thing is that we use single quotes. All this is easy to setup in for example the `autoDocstring` extension in VScode but should probably be explicitly stated in the docs. We could even consider providing a custom template for `autoDocstring`.