Hi All,

I have been recently working on adding rich text support through markdown in Hyperkitty so that emails can be made easier to read. The core design idea in my mind when working on this was building something that doesn't bother writers of plain text emails too much, but allows people to write emails in markdown.

The supported syntax is limited Markdown, for example:

Hyperkitty's Markdown Syntax

• List items are supported
  • Even nested ones
• Headers with # aren't supported, mostly due to their widespread use as comments in code shared on mailing lists.
• You can **emphasize** text and _itcalize_ them too
• Block code and inline code works.
• URLs work like they usually do.
• Images _do work_, but are disabled by default because of their potential for tracking users. They need to be enabled by administrators through a configuration flag.

def sample():
    return "yay"

While text intentionally written for Markdown rending looks pretty good, plain text sometimes isn't as good. I have applied my branch1 on both the Mailman installations for these two lists (mail.python.org & lists.mailman3.org).

Any feedback or bug reports on weird looking stuff is welcome here or directly on my PR

-- thanks, Abhilash Raj (maxking)