One more doc fix

Author: tw0po1nt

gitbook/option/sequenceAsync.md

@@ -18,10 +18,10 @@ See also Scott Wlaschin's [Understanding traverse and sequence](https://fsharpfo
 
 ```fsharp
 let a1 : Async<int option> =
-  sequenceResult (Some (Async.singleton 42))
+  Option.sequenceResult (Some (Async.singleton 42))
 // async { return Some 42 }
 
 let a2 : Async<int option> =
-  sequenceAsync None
+  Option.sequenceAsync None
 // async { return None }
 ```

gitbook/option/traverseAsync.md

@@ -40,6 +40,6 @@ If we have a value of type `string option` and want to call the `getCustomerByEm
 Some "[email protected]" |> Option.traverseAsync getCustomerByEmail
 // async { return Some { Id = 1; Email = "[email protected]" } }
 
-None |> Option.traverseResult tryParseInt
+None |> Option.traverseAsync getCustomerByEmail
 // async { return None }
 ```