Explain difference between Exact-Complex and Exact-Number.

Author: NoahStoryM

typed-racket-doc/typed-racket/scribblings/reference/types.scrbl

@@ -97,6 +97,14 @@ Exact-Imaginary
 Inexact-Imaginary)]
 These types correspond to Racket's complex numbers.
 
+@ex[
+(ann 1+1i Exact-Number)
+(ann 1+1i Exact-Complex)
+(ann 1+0i Exact-Number)
+(eval:error (ann 1+0i Exact-Complex))
+(ann 0+1i Exact-Number)
+(eval:error (ann 0+1i Exact-Complex))]
+
 @history[#:changed "1.7"]{@elem{Added @racket[Imaginary],
  @racket[Inexact-Complex],
  @racket[Exact-Complex],