[Cookbook] CSV formats, attribute data structure about pim-docs

[nidup]

@a2xchip not the repo the most popular for sure 😉

🎉 Thank you a lot for opening the discussion 🎉

1/ Yes we we should add missing columns (new attribute properties) in the import format (in the master only)

2/ Yes we should avoid to duplicated such content, we should remove the list of attribute types from here http://docs.akeneo.com/master/reference/import_export/formats/attribute.html#attribute-types and add a link from this page to this page http://docs.akeneo.com/master/reference/product_information/index.html#attribute-type

Don't hesitate to open a PR on the master for this change, we'll merge it quickly.

BTW, thank you for re-introducing the product information page in reference doc, I'm pretty sure it really helps a new comer to understand concept and what are the different objects responsibilities

[a2xchip]

@nidup Is not documentation repository popular? Why nobody wants to discuss it? This is about documentation consistency and mono-style.