Multi-column Tables
===================
`@multitable' allows you to construct tables with any number of
columns, with each column having any width you like.
You define the column widths on the `@multitable' line itself, and
write each row of the actual table following an `@item' command, with
columns separated by an `@tab' command. Finally, `@end multitable'
completes the table. Details in the sections below.