Drag the ▲ ● ▼ markers · tap a line to place the active marker · ←/→ select marker
(▲ top · ● title · ▼ bottom) · ↑/↓ move · Enter file · Esc cancel
On a phone: drag the markers, tap a line to place.
You can add more detail on GitHub later — it probably won't be required (if it's broken,
it's probably obviously and completely broken). Don't worry about duplicates either.