title: How should i structure the code so Facebook and Google+ fetch the right elements when someone shares an url?
body: <p>I was wondering which elements are fetched when an user shares an url on Facebook or Google+...
  For example: how can i make sure the description of the post will be the description i want to be shared and the image will be the image i want to be shared?
  Title is pretty obvious, so i skipped that.</p>