Create a set of usecase for what Narayana is good for narayana.io page

It would be good to provide the ways how Narayana could be used in use cases. It's what is modern now how the documentation is written (documentation is done in way of “stories” in Red). We could provide set of examples what the Narayana is good for and how it could be used and implemented easily to the user's system.

It could be thinks like a bit of what our quickstarts are for but it's rather a paragraph of text where is said what and why is good for. How process goes and then e.g. link to quickstarts.
Talk about features but say why. Play a user story.