cmark doesn't seem to encode < and > in headers.

[ademko]

cmark (tested with current git version) doesn't seem to encode < and > in headers. For example, this:

Glib::RefPtr<T>
--------------

Converts:

<h2>Glib::RefPtr<T></h2>

(ideally the should be <T> etc)

[jgm]

Here `<T>` is being parsed as raw HTML. See the CommonMark spec to see why this is according to spec. (We don't limit to known HTML tags.) Since this is code, it is recommended that you put the whole thing inside single backticks. If you don't want to do that, you can backslash-escape the `<`.

[ademko]

Wow, that's unexpected, but it seems to be there in part 6.8 "raw html" of the spec. Also, github's preview confirms this to :)

Thanks, and thanks for the great software.