Config details go here.

This produces two top-level sections — "Getting Started" (with two subsections, "Linux" and "Mac") and "Configuration."

**2. Legacy heading fallback.** If your file has no structure tags at all, but does have two or more single `#` headings (not `##` or `###`), Doclix falls back to splitting at those headings instead. This produces flat sections with no subsections — useful for older files you haven't updated to use tags yet.

If a file has neither structure tags nor multiple `#` headings, the whole file is imported as one section.