3.7: Have this subsection earlier in the book

## Description

By this point, I think students would have started creating their own programs, and having the naming conventions earlier makes more sense. Maybe at the start of chapter 3 or the end of chapter 2. 

## Screenshot 

<img width="856" height="610" alt="Image" src="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/user-attachments/assets/838f7bab-460c-4f70-baaa-69c4a75ac192" />
