Document plot recipes

[rafaqz]

Also put demo plots in the readme/module docs.

Adds some bling.

[tomchor]

I saw this issue is still open. I'm really interested in this package as a way to visualize my results more easily. Are there any example scripts anywhere?

[rafaqz]

You don't really need examples to use it... it's just the functions from Plots.jl and StatsPlots.jl. There's no special syntax.

Like plot(dimarray), heatmap(dimarray), histogram(dimarray) etc. They just work and should put labels in the right places and permute dimensions correctly.

But examples would help showcase it, for sure.