New WIP DUB documentation

[WebFreak001]

On Tuesday, 16 August 2022 at 08:13:08 UTC, Sönke Ludwig wrote:
> Looking good, having SDL+JSON on the same page is especially 
> nice and something I've been wanting to fix for a while. Also 
> definitely a good idea to use a static generator now that the 
> documentation is separate.
>
> One question, though - do you generate the CLI documentation 
> from the DUB sources, or is that manual work?

for the CLI documentation I modified the man generator to output 
markdown instead of man formatting, still need to PR that