texinfo-start-menu-description
texinfo-start-menu-description is an interactive autoloaded compiled Lisp function in `texnfo-upd.el
'.
(texinfo-start-menu-description)
In this menu entry, insert the node's section title as a description.
Position point at beginning of description ready for editing.
Do not insert a title if the line contains an existing description.
You will need to edit the inserted text since a useful description
complements the node name rather than repeats it as a title does.