Docs: Avoid usage of long lines in TOML citations because of github issue

[ItsIgnacioPortal]

What do you want added to PrivacySpy?
I think we should add a note to the Contribute page to tell people to avoid using single-lines citations that are 1024 (or more) characters long, as the github syntax-highliting does not currently support TOML lines which are that long.

Have you considered implementing this addition yourself and submitting a pull request?
I couldn't find a way to directly contribute to the webpage.

[doamatto]

@milesmcc What do you think would be a good way to tackle this ? At a glance, it would make things easier for moderation for those who may not be cloning locally to read the files and instead using GitHub's web editor.

[milesmcc]

Yeah, we can absolutely do this. We could enforce it via a new test in our pipeline.