swcarpentry/bc — pull request #545 by r-gaia-cs (2014-06-17 20:06:23+00:00)
Title: Fix headings for book

Some Markdown files start with

---
layout: lesson
root: .
title: TITLE
---
### SUBTITLE

When creating `book.md` it will have

## TITLE
### SUBTITLE

that is translate into HTML by Jekyll as

TITLE

### SUBTITLE

Change `make-book.py` to generate `book.md` having

## TITLE

### SUBTITLE

will fix this issue without side effect.

Thanks to @jduckles for reporting this issue.