1. Fixed problem of jumping to in-page anchors ending up putting the heading text under the nav bar.

2. Moved the body margin settings to in here.

3. Style the headings in the table of contents better.  This is combination with some changes to the Makefile, to set a class attribute on the headline elements.
1. Added support for bibliography.
2. Added formatting of headlines.
This is now in handbook.css.
Fixed github link.
Turns out it's not that great to auto-refresh the pages.  Turning it off for now.
More content work.