Documents and demos

[Roger-luo]

Hi Mike,

do you want to set up a Documenter.jl doc? I can make a PR for this.

Bests,
Roger

[MikeInnes]

Sure, I think now's a good time to start having real docs for this.

[Roger-luo]

could you set up the travis CI for me pls? I will need it for Documenter. (add the keys to it)

[MikeInnes]

Should be set up -- let me know if that doesn't work.

[o314]

By the way, the current docs/utilities.md

function name{params}(args; kwargs)::rtype where {whereparams}
   body
end

is not up to date with current function form after v1.0

The syntax for parametric methods, function f{T}(x::T), has been changed to function f(x::T) where {T} (#11310).

[MikeInnes]

Would be great to have a patch to fix that.

I'll close this issue for now since we have docs up.