Added examples to documentation for for/fold/derived, for*/fold/derived, define-sequence-syntax, and :do-in.
Added examples to documentation for for/fold/derived, for*/fold/derived,
define-sequence-syntax, and :do-in.

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket