anchor.diff:  
       wordCount phrase |> should equal counts
   
  -[<Fact(Skip = "Remove to run test")>]
  +[<Fact>]
   let ``Count everything just once`` () =
       let phrase = "all the kings horses and all the kings men"
       let counts = Map.ofSeq [("all",    2);
  
positive.code: 
      wordCount phrase |> should equal counts
  
  [<Fact(Skip = "Remove to run test")>]
  let ``Ignore punctuation`` () =
      let phrase = "car : carpet as java : javascript!!&@$%^&"
      let counts = Map.ofSeq [("car",        1);
  
negative.code: 
      wordCount phrase |> should equal counts
  
  [<Fact>]
  let ``Count multiple occurrences`` () =
      let phrase = "one fish two fish red fish blue fish"
      let counts = Map.ofSeq [("one",  1);
  