fn judgment_heading(line: &str) -> Option<(String, String)>Expand description
The heading a line opens, and its body when the line carries one.
A model writes a heading as Where things stand: ..., ## Next,
**Next:** ..., **Next** run the gate., ## Next. or 1. **Next**. The
label still has to open the line: a marked line, or a short title-shaped
label before a colon, is a heading. A sentence that carries a colon in the
middle stays body text, and a marked label still has to read as one -
**I fixed it. The gate:** is green stays body.