How to invoke PSGML
*******************

   PSGML defines a major mode called `sgml-mode'.  Files with
extensions `.sgml', `.sgm' or `.dtd' will automatically be edited in
SGML mode.  To edit some other file in sgml mode, type `M-x sgml-mode
<RET>' after finding the file.

   If you can modify the file you can add a "Local Variables" list
(see Local Variables in Files: (emacs)file variables.) to the end of
the file.  This can make Emacs automatically set sgml mode and user
options when the file is loaded.  The simplest Local Variables list
would look like:

     <!--
     Local Variables:
     mode: sgml
     End:
     -->

   You can also put a line at the top of the file to tell emacs to use
sgml mode:

     <!-- -*- sgml -*- -->

   But remember that you can't have a comment before the *SGML
declaration*.