Create an introduction to Code Reviews explaining how to make the best of a code review

[cloudappsguy]

Is your feature request related to a problem? Please describe.
Code Reviews is something we need to conduct as a part of our practices as high-quality delivery organization. Not all code contributors (regardless of practice) understand code reviews, how to approach them, and their true purpose.

Describe the solution you'd like
Write a brief introduction with additional supporting content on how to achieve effective code reviews.

Describe alternatives you've considered
Alternative approaches may eventually include a video series for alternate learning styles, including placement of 'code review' training in 360 Learning.

Additional context
None