-;;
-;; To enter sisu-mode automatically, add (autoload 'sisu-mode "sisu-mode")
-;; to your .emacs file and change the first line of your sisu file to:
+;; SiSU (http://www.sisudoc.org/) is a document structuring and
+;; publishing framework. This package provides an Emacs major mode
+;; for SiSU markup.
+
+;; When this package is installed, files ending in ".sisu" are
+;; automatically associated with sisu-mode. If a file doesn't have a
+;; .sisu extension, add a first line: