`@unnumbered' and `@appendix'
=============================
Use the `@unnumbered' command to create a chapter that appears in a
printed manual without chapter numbers of any kind. Use the
`@appendix' command to create an appendix in a printed manual that is
labelled by letter instead of by number.
For Info file output, the `@unnumbered' and `@appendix' commands are
equivalent to `@chapter': the title is printed on a line by itself with
a line of asterisks underneath. (Note:`@chapter'.)
To create an appendix or an unnumbered chapter, write an `@appendix'
or `@unnumbered' command at the beginning of a line and follow it on
the same line by the title, as you would if you were creating a chapter.