bug#31576: emacs-lisp-intro.texi - NAME, TITLE inconsistency among @node, @unnumberedsec

[Van L]

> Eli Zaretskii writes:
> 
> I'm not sure I understand why.  This is an introduction to Emacs Lisp,
> not to Texinfo.

To my understanding, the texi file is the source and the other files are facets 
in the presentation. A person may switch between reading the infopage and pdf. 
Jotting down on paper `numbers, lists in lists’ from reading the pdf then later 
on resuming on the infopage will look different as `numbers lists’.