Generate unique type headers

The current headers in the markdown template are not guaranteed to be unique since they do not include the version. For my use case I have multiple versions of a CRD with the same types in each version. Since the output is all in one file, when I want to link to a type from another markdown file (like `out.md#typename`), it will only ever link to the first heading matching the link, which could be an out of date reference. I tried creating my own template for this but the issue is the markdown `RenderTypeLink` function will no longer create accurate links with the change.