[LyX/master] Clarify quote-insert LFUN.

[Pavel Sanda]

On Mon, Apr 01, 2024 at 09:28:51PM +0000, Richard Kimberly Heck wrote:
> commit b0c4681cd8f4dedb975aac800000dcb717c40aa8
> Author: Richard Kimberly Heck <rikiheck at lyx.org>
> Date:   Mon Apr 1 17:26:01 2024 -0400
> 
>     Clarify quote-insert LFUN.
>     
>     And add remark about multiple optional arguments.
>     
>     (cherry picked from commit 29be057a073fde4e36c9adbf31c6cd764f62bda2)

Riki, this file is unf autogenerated. Everything needs to go to LyXAction.cpp
first and later regenerated via "make lfundoc".

Pavel