bug#67003: 26.3; (elisp) Basic Char Syntax: Show octal and Unicode names as well, for chars

[Eli Zaretskii]

> From: Drew Adams <drew.adams@oracle.com>
> Date: Wed, 8 Nov 2023 21:17:56 +0000
> 
> In the list of character representations shown, please:
> 
> 1. State that the digits shown (so far) are decimal.

The very first sentence there says:

  Since characters are really integers, the printed representation of a
  character is a decimal number.

And all the rest of the subsection shows those printed representations.

> 2. But show also the octal digits.

Show where and how?  And why?

> 3. Show also other names, such as Unicode/ISO names.
>    E.g., say that "vertical tab" is the char that has the ISO name
>    <Line Tabulation> (VT).  (And still mention that it's C-k.)

The next subsection, "General Escape Syntax", includes this
information.

> IOW, give a little more info, esp. commonly encountered or "official" names 
> for such chars.

I think we already do, but you need to consider the entire section,
not just its single subsection, which correctly starts with the
basics, before we proceed with more advanced stuff.