Support --toc for Markdown and Textile writer

[Schmoozerd]

Hello,

sorry if this is a bad feature request, i just used pandoc quite happily, but when i tried the --toc option (for markdown writer) I noticed that there aren't links created.

So I suggest to create the TOC with internal links to the listed sections.

Writer: markdown[_github]
Version: Current
Related Code: https://github.com/jgm/pandoc/blob/master/src/Text/Pandoc/Writers/Markdown.hs#L197

Thank you for your nice program 👍

P.S I noticed also that textile format does not yet support --toc

[mpickering]

Thanks for your report - this shouldn't be too difficult to implement.

[vladchimescu]

Are there any updates on this one? I tried to generate TOC with the markdown writer, but internal links are not automatically inserted and only a list of sections/subsections (without hyperlinks) is generated. At the same time, HTML writer doesn't have any problems with TOC generation..