[racket] Typo in FFI documentation

 http://docs.racket-lang.org/foreign/foreign_procedures.html#%28part._foreign~3acustom-types%29

( define-fun-syntax   _float*
   ( syntax-id-rules   ( _float* )
     [ ( _float* )   ( type:   _float   pre:   ( x   =>   ( +   0.0   x ) ) ) ] ) )
 
( _fun   _float*   ->   _bool )

doesn't work.

Should be 

( define-fun-syntax   _float*
   ( syntax-id-rules   ( _float* )
     [ _float*    ( type:   _float   pre:   ( x   =>   ( +   0.0   x ) ) ) ] ) )
 
( _fun   _float*   ->   _bool )