scmdoc

 1;;> This is a library which contains an example usage.
 2;;>
 3;;> Consider the following example:
 4;;>
 5;;> ```
 6;;> (import (scmdoc test simple))
 7;;>
 8;;> (define (my-func x)
 9;;>   (* my-id 2))
10;;> ```
11(define-library (scmdoc test simple)
12  (export my-id)
13
14  (begin
15    ;;> This identifier is documented and exported.
16
17    (define (my-id x) 23)))