The first node of a Texinfo file is the `Top' node, except in an included file (see section Include Files).
The `Top' node (which must be named `top' or `Top') should
have as its `Up' and `Previous' nodes the name of a node in another
file, where there is a menu that leads to this file. Specify the file
name in parentheses. If the file is to be installed directly in the
Info directory file, use `(dir)' as the parent of the `Top' node;
this is short for `(dir)top', and specifies the `Top' node in the
`dir' file, which contains the main menu for Info. For example,
the @node Top line of this manual looks like this:
@node Top, Overview, (dir), (dir)
(You may use the Texinfo updating commands or the makeinfo
utility to insert these `Next' and `(dir)' pointers
automatically.)
See section Installing an Info File, for more information about installing an Info file in the `info' directory.
The `Top' node contains the main or master menu for the document.