Convert HTML5 to Markdown using Pandoc
Fix preface, TOC, and headings
Fix spelling (1-4)
Fix spelling (5-9)
Fix quotes and dashes (1-2)
Fix quotes and dashes (3)
Fix quotes and dashes (4)
Fix quotes and dashes (5-6)
Fix quotes and dashes (7-9)
Fix references
Fix figures
Fix formatting (1-2)
Fix formatting (3)
Fix formatting (4)
Fix formatting (5-6)
Fix formatting (7-9)