Documentation error for "on-the-fly"

[Paul Hodges]

On the page:

http://lilypond.org/doc/v2.23/Documentation/notation/custom-titles-headers-and-footers

the syntax for using \on-the-fly is specified as:

   variable = \markup {
     …
     \on-the-fly  \procedure  markup
     …
   }

and the following examples use the same.  Note the use of \ to introduce 
the procedure.

However, this does not work for all procedures - specifically not in the 
case of \(on-page n).  But using # instead of \ works in all cases, and 
is also more logical as introducing the parameter for \on-the-fly.

It would seem logical to change the documentation to specify and use # 
instead of \ for these procedures.

Regards,
Paul