Do note refs allow for content references via line numbers? This is a question because of situations where you may want to remix content or note ref just a paragraph from a read-only vault (such as a dendron Seed or otherwise public remote vault). Since this would be a situation where being able to enter block refs wouldn't be possible (unless you created your own fork...), I'm wondering whether note refs are possible with line number references alone since it would mean not having to modify the source file or be stuck with only header refs