no xml2rfc?

Hi everyone,

I'd like to submit a proposal to this working group (I think?), but I have
a few questions.

* Are this HTTP WG and the HTTPbis WG the same working group?
* I was under the impression my draft had to be in XML in order to submit
it to https://datatracker.ietf.org/submit/, but looking at
https://github.com/httpwg/http-extensions, it seems you are using a
Markdown variant as the source. Is there a tool that turns the .md into an
.xml suitable for the datatracker?
* Should I just use the template repository and not pay attention to what
happens in the github workflow?
* Since my proposal is for http-extensions, should I submit a PR on GitHub
with the new .md files, or should I submit to the datatracker first?

Thank you,
Julien.