Editor with Markdown folding support

[Robert Moskowitz]

I have been using Geany for some time for my html and xml (Internet 
Drafts) writing.

Now I am being pushed to learn the IETF kramdown approach to writing 
drafts which is based on Markdown.

The markdown plugin for Geany only colorizes SOME of the tags used. Most 
importantly I cannot 'fold' blocks of text I am not currently working on 
like I do for xml and html all the time

So does anyone have experience with at least Markdown and can recommend 
another editor to try?

thanks