In this challenge add functionality to add tags to RocketLaunches by updating the data model.
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/32317039-core-data-beyond-the-basics/lessons/9
This is a companion discussion topic for the original entry at https://www.raywenderlich.com/32317039-core-data-beyond-the-basics/lessons/9