Scope scroll to chapter links
Add beginning of JS chapter
Link author to Twitter instead of homepage
Add section about variables to JS chapter
Add toc generating jQuery library
Generate TOC
Demote headers down one level so as to introduce new h1's
Add lead texts to all main headers
Wait 4 seconds before building TOC to allow client to breathe
Only use dividers between h1's
Increase TOC item spacing in desktop
Show active TOC item
Separate title with divider instead of ad-hoc, and better divider
Bug fix: Spacing issues for mobile TOC
Highlight next chapter earlier in TOC
Highlight next chapter even earlier in TOC
Turn TOC slugs into AWESOME TOC slugs
Finish with divider
Add datatypes table
Style table