Decide how to inform end-users of remote API status

[bajiat]

As Jukka (API consumer), I want to know, whether the API I'm using or interested in is alive or down.

Definition of done

• Determine how we can inform users about API status.
• Determine what "alive" and "down" means and how to check the aliveness.
• Create a Hackpad document describing the solution.
• Create a wireframe or diagram to show user is informed about the status.
• Write example/pseudo code on checking the status.