Especially in English texts…
I am no native English speaker, and there are so many subtleties in the English language, so when I was about to prepare my lightning talk submissions for both PyOhio and PyCon US, I was super happy that my friend Miroslav Šedivý sent me the following link:
https://capitalizemytitle.com/
At this site you can just paste your heading’s text, and you receive it properly capitalized, even in different styles, e.g. APA, Chicago, AP, MLA… and many more.
P.S.: When I showed the final result to my friends Miroslav and Oliver, I certainly got a big VETO! 🧐🥳
P.P.S.: I just learned: “There are no fixed rules for headings except for tox!” Oliver Bestwalter