Review Challenges

[Vladmidir]

Review and, where necessary, edit the challenges. Make sure the challenge scenarios match the intended design patterns. Refer to Refactoring Guru for design patterns.

Make sure the difficulty of each challenge makes sense in the context of the challenge.

Implement EACH challenge to make sure it makes in the context of 207 design patterns.
^ Note that this will take a while, as you may need 1hr+ for each medium challenge and 2hrs+ for the hard challenges.