Add support for comments

[estan]

Would be nice if there was some way of commenting the source. Maybe <!-- ... --> like Markdown supports?

[rstacruz]

perhaps you can use:

[]: this is a comment

[jflorian]

@estan , I have been using comments (in the form you suggested) for a long time already. Have you tried it? I do think that ronn-format(7) probably should mention this though.

[apjanke]

Yeah, I can confirm the <!-- ... --> HTML/Markdown style comments are working. Is this still an issue?

[buckle2000]

It is not working. For example:

<!-- ## SEE ALSO -->