Markdown supported in swagger-editor but not swagger-codegen

I can use Markdown in several places in my API spec (in YAML) to enter detailed descriptions, and swagger-editor will interpret it and display it correctly. However, when I put the resulting spec (in JSON) into swagger-codegen, it doesn't convert the markdown while generating a static HTML page. As far as I can tell, swagger-codegen doesn't accept YAML, so the end result is that I have to do extensive reformatting to convert my spec to HTML documentation. This has to be fixed.