Extra-documentation suggestion

[ppKrauss]

Hi, I am new here, and like the ideia of use the pipeline-spec.yaml...

...But not understand, how to explain, to other people de difference between datapackage-pipelines and SQL (the most popular standard for express tabular-processing).

So, a suggestion is to include a document.md, or a section at README.md, showing for ceptics and dummies the basic differences... or perhaps a rationale, explaing why to not use SQL database export/import to the "declarative processing of tabular data".

[akariv]

Thanks for the suggestion @ppKrauss - will take into consideration!