About explanation for sourcePath

[RyotaUshio]

The sourcePath:string parameter appears in several places in the API, but is sometimes not explained at all. Even when it is explained, the explanation varies from place to place and was not always easy to understand when I started writing plugins. Also, I have seen some plugins using sourcePath incorrectly.

So far, the clearest explanation that I could find is the one given in FileManager.generateMarkdownLink:

https://docs.obsidian.md/Reference/TypeScript+API/FileManager/generateMarkdownLink

where the link is stored in, used to compute relative links.

Hopefully this explanation will be adopted everywhere. Thank you!