Rewrite RAII pattern article to adapt to OBRM terminology

[9SMTM6]

As the relevant section points out RAII isn't a great name for the concept. Rust actually has its own name for the concept, Ownership Based Resource Management, which I find vastly superior.

Of course we should keep references to RAII to make this easy to find and to ease adaption, but I'd like to switch to primarily OBRM terminology in that section.

I'll probably get to doing that over the weekend, but anyone may feel free to do that themselfes. This issue was created to ensure this eventually gets resolved, and to ensure that the maintainers will accept such a PR.