Recommended way to change baseUrl to be relative to the markdown file?

[chris-dura]

1. Is {{BASEURL}} affected by baseUrl at all? (I'm very confused by baseUrl -> projectBaseUrl' -> {{BASEURL}}`)

2. In my project, I need baseUrl (which is the url to be used for relative links, correct?) to be relative to the markdown file, not the project root, or cwd, etc. Is there a best practice/recommended way to set that up?