CommonMark only treats a run of asterisks as an emphasis delimiter when it is
left/right-flanking. CJK punctuation counts as Unicode punctuation, so a closer
like `**数据（配比）**相互交织` is preceded by punctuation and followed by a
letter — it cannot close, and the page shows literal asterisks instead of bold.
Inserts the single space that book-rules 1.1 already asks for, on whichever
side was failing: 2 places across 2 file(s). No wording changed —
every diff here is whitespace-only. Verified against pandoc's gfm reader:
each span now renders as its own <strong>.
- Enforce Level 1-3 structural numbering based on SUMMARY.md hierarchy
- Remove structural numbering from Level 4+ headings
- Eliminate single child headings by converting to bold text
- Auto-inject summary text for headings with multiple children missing intro text
- Exclude Appendix chapters from structural numbering
- Avoid modifying code block contents
- Add script to detect non-standard English usage in headers
yeasy