Add documentation for Classifier Results View

[gwaybio]

@ypar noted in #86

it would be nicer to see some summary texts accompanying them. in their current form, they are very difficult to follow. maybe show one or two exemplary figures in their respective notebooks and describe what they mean? IMHO, every notebook and figure are maximally useful only if they are interpretable as standalone documents. If I have to jump between multiple notebooks and search scripts to understand a figure, that eliminates the convenience of having notebooks published.

I need to do this. I am thinking about adding a README to the classifiers folder that will serve as a document guide.