[arch-haskell] updated wiki

[tam at hiddenrock.com]

> > > Is the blog still under control - a new blog post might be nice.
> >
> > Yes, I have the account for that.  Feel free to write something for it
> > if you want to.
> 
> When I get a chance... also, not sure what to say yet :)

It would be really helpful to me and, I think, to anyone looking to get
involved, if we start by (even briefly) documenting the current state of the
project, then describe where we want it to go, and finally start talking about
how we're thinking of getting there.

pete