Invalid markdown link syntax for see cref

[AmadeusW]

The TagRenderer for see cref constructs the following markdown format: [[{1}|{0}]] This doesn't seem to be a valid link under any markdown specification. Looking deeper into this, this is a format for seePage. Valid format [{1}]({0}) exists for seeAnchor, but it is used only if the reference name in XML starts with !:#

Am I missing something about the markdown specification or doc comments? Would you accept a PR that generates universally working markdown fora a doc comment like below?

---

• Original doc comment

    /// <summary>
    /// This struct is used to transfer data from <see cref="Class1"/> to <see cref="Class2"/>
    /// </summary>

• generated XML file

            <summary>
            This struct is used to transfer data from <see cref="T:MyNamespace.Class1"/>
            to <see cref="T:MyNamespace.Class2"/>
            </summary>

• Current output of the tool

 This struct is used to transfer data from [[| T:MyNamespace.Class1]] to [[|T:MyNamespace.Class2]] 

• Current output of the tool renders as This struct is used to transfer data from [[| T:MyNamespace.Class1]] to [[|T:MyNamespace.Class2]]

• Proposed output of the tool

 This struct is used to transfer data from [Class1](#MyNamespace.Class1) to [Class2](#MyNamespace.Class2) 

• Proposed output of the tool would render as This struct is used to transfer data from Class1 to Class2