Adding Markdown to Ddoc

[Nemanja Boric]

On Wednesday, 6 December 2017 at 04:11:33 UTC, Walter Bright 
wrote:
> https://help.github.com/articles/basic-writing-and-formatting-syntax/
>
> Anyone interested in picking up the flag?
>
> (I know this has come up before, and I've been opposed to it, 
> but I've changed my mind.)

These are great news. We are using harbored-mod 
(https://github.com/dlang-community/harbored-mod) which does this 
for quite some time, but it feels like a second-class citizen 
compared to the ddoc.