[BioC] Pretty HTML Vignette Error

[Mecham, Brigham H]

The HowTo: get pretty HTML output for my gene list Vignette appears to 
be incomplete.  I think the beginning of section 4 got cut out at some 
point.  Also, it uses variables that it doesn't explain how to create 
(e.g. gb, ll, ug, etc.).

Thanks