anchor.diff:  
               document |> getHyperlinks |> should be Empty
   
  -        [<Test>]
  +        [<When>]
           let ``<When> URI without protocol but with "www" is entered <Then> clickable hyperlink is created`` () =
               let document = new FlowDocument(new Paragraph(new Run("Some dummy www.host.org")));
   
  
positive.code: 
      [<Scenario>]
      module ``Given a text line with leading # characters`` =
          [<Test>]
          let ``<When> SPACE is pressed after '#' character <Then> the line will be converted into a headline`` () =
              let doc = new FlowDocument(new Paragraph(new Run("# ")))
  
  
negative.code: 
      [<Scenario>]
      module ``Given an unknown Ascii symbol`` =
          [<When>]
          let ``<When> entered <Then> no symbol is inserted`` () =
              let document = new FlowDocument(new Paragraph(new Run("Some dummy text")));
  
  