Document: Fix the definition of defmodule/incl.

[NoahStoryM]

In the old definition, if we search for JSExpr in the search manuals, we will get:
JSExpr provided from typed/racket/base, typed/racket

instead of
JSExpr provided from typed/json

[samth]

I don't think this is the right fix -- it's equivalent to just taking out the section.

[NoahStoryM]

I'm not sure about the purpose of introducing section in defmodule/incl, but I tried deleting #:style in these two definitions to ensure that the section is valid:

@(define-syntax-rule @defmodule/incl[name rest ...]
    (list
     (section (string-append "Typed for "(symbol->string'name)))
     @defmodule[name rest ...]))

@(define-syntax-rule @defmodule/incl[name rest ...]
    (begin
      (section (string-append "Typed for "(symbol->string'name)))
      @defmodule[name rest ...]))

It seems that these two definitions both make the document generate the corresponding section. Have I missed something? I am not very familiar with scribble.

[NoahStoryM]

By the way, can we consider adding @section{Typed for the @racketfont{typed} collection} and using

(subsection #:style '(hidden) (symbol->string 'name))

instead of

(section #:style '(hidden toc-hidden unnumbered)
         (string-append "Typed for " (symbol->string 'name)))

I think it might be better to list these typed collections in the catalog, just like we list Types in Type Reference.