Lesson 02.2

Completed lesson 02.2 at scottlilly.com
Revert "Lesson 02.2"

This reverts commit 2f63ea09b426ac3240420baf0a5479cf2d6d843f.
Revert "Revert "Lesson 02.2""

This reverts commit 5f7783361e3ae9ea09be0496f7ce9fd3c1238f44.