Chapter 4, inconsistent project name and description

[JunichiIto]

This issue was reported by a Japanese edition reader.

In chapter 4, Associations in factories and Avoiding duplication in factories, there are some of project name and description, but they are inconsistent. Some are "Project #{n}" and "A test project." and the others are "Test Project #{n}" and "Sample project for testing purposes".

In GitHub, :project factory has "Project #{n}" and "A test project." However, Non-DRY versions are "Test Project #{n}" and "Sample project for testing purposes".

https://github.com/everydayrails/everydayrails-rspec-2017/blob/04-factories/spec/factories/projects.rb

The reader is saying this issue might make beginners confused, so please review and consider to fix them.