scriblib/footnote: advertise 'next instead of #t as #:number for note

Author: fare

scribble-doc/scriblib/scribblings/footnote.scrbl

@@ -8,14 +8,14 @@
 
 @defmodule[scriblib/footnote]
 
-@defparam[note-number number (or/c integer? boolean?)]{
+@defparam[note-number number (or/c integer? #f 'next)]{
   This parameter controls the number of footnotes in the HTML renderer.
   See @racket[note] for how it is interpreted.
 
   To enable footnote numbers in HTML,
-  add @racket[#:number #t] to your first call to @racket[note]
+  add @racket[#:number 'next] to your first call to @racket[note]
   (you can also add it to subsequent calls, but that is not necessary);
-  or set this parameter to either 1 or @racket[#t].
+  or set this parameter to either 1 or @racket['next].
   To disable footnote numbers again in HTML,
   set this parameter back to @racket[#f] (the default).
 
@@ -29,9 +29,9 @@ Creates a margin note for HTML and a footnote for Latex/PDF output.
 
 If rendering HTML, then the number parameter is used, which default to @racket[(note-number)].
 If it is @racket[#f] then no number is used (default / legacy behavior).
-If it is @racket[#t] and @racket[(note-number)] is an integer,
+If it is @racket['next] and @racket[(note-number)] is an integer,
 then the latter value is used.
-If it is @racket[#t] and @racket[(note-number)] is not integer,
+If it is @racket['next] and @racket[(note-number)] is not integer,
 then the value 1 will be used instead.
 If it is an integer, then its value is used.
 If an integer value is used, then @racket[(note-number)] is set to the next integer.