Tutorial 'continue.scrbl' signatures rendering confusing to readers

The rendering of signatures in the Continue tutorial is confusing to readers

In the tutorial, functions are often described, then followed by their signature in the familiar scribble/manual format.

Unfortunately the hairline at the top of the signature, in addition to the large gap above, and lack of a gap below gives the impression the signature is associated with the subsequent text.

e.g. http://docs.racket-lang.org/continue/index.html?q=specform#%28def._%28%28lib._web-server%2Fservlet..rkt%29._extract-binding%2Fsingle%29%29

My suggestion is the rendering of continue is changed to support the 'description followed by signature' style of the text. I'd suggest moving the hairline to the bottom of the signature, and increasing the spacing between the signature and the subsequent paragraph.

Options to resolve;

• a different css stylesheet for continue.scribble
• an new signature function that handles spacing differently
• other options?

https://github.com/racket/web-server/blob/master/web-server-doc/web-server/scribblings/tutorial/continue.scrbl

https://github.com/racket/scribble/blob/master/scribble-lib/scribble/private/manual-proc.rkt

Start with web-server-doc/web-server/scribblings/tutorial/continue.scrbl and inspect the signature rendering used there, then read scribble-lib/scribble/private/manual-proc.rkt to understand the relevant manual formatting. Compare the tutorial's description/signature spacing with the linked example; done means the signature is visually associated with the preceding description and separated from the following paragraph.