# FS-001-foo: Foo

Foo overview. Built per [§FS-002-bar.1](FS-002-bar.md#1-detail) — see there for the detail. A plain [link](https://example.com) is left alone.

## 1. First

First body, and a sectionless cross-ref to [§FS-002-bar](FS-002-bar.md#fs-002-bar-bar).
