- Set their view boxes to the original height and width, so they are
guaranteed to present correctly.
- For Figure 17-02, use the trick of adding a hidden node and hidden
arrow to it in “Task 2” to align the two boxes.
- Swap the ordering to match the order in the text (concurrent is first,
at least for now).
- Make them go left-to-right instead of top-to-bottom for compactness in
the text.
- Fix rendering issues resulting from the VS Code extension doing things
that normal `dot` does not, for who knows what reasons.