Fix incorrect comment in Complex.Zero C# example

snippets/csharp/System.Numerics/Complex/Zero/zero1.cs

@@ -9,7 +9,7 @@ public static void Main()
       Complex value = Complex.Zero;
       Console.WriteLine(value.ToString());
 
-      // Instantiate a complex number with real part 0 and imaginary part 1.
+      // Instantiate a complex number with real part 0 and imaginary part 0.
       Complex value1 = new Complex(0, 0);
       Console.WriteLine(value.Equals(value1));
    }

snippets/visualbasic/System.Numerics/Complex/Zero/zero1.vb

@@ -9,7 +9,7 @@ Module Example
       Dim value As Complex = Complex.Zero
       Console.WriteLine(value.ToString())
 
-      ' Instantiate a complex number with real part 1 and imaginary part 0.
+      ' Instantiate a complex number with real part 0 and imaginary part 0.
       Dim value1 As New Complex(0, 0)
       Console.WriteLine(value.Equals(value1))
    End Sub