How to Cheat chapter: is actually on overfitting - consider merging

Wouldn't it be a good idea to bring overfitting in classification (How to Cheat) under one umbrella with overfitting in regression? Currently, overfitting in classification is introduced under a different name before the notion of overfitting is introduced. This is somewhat confusing.

Locate the TeX sources for the “How to Cheat” chapter and the section covering overfitting in regression. Compare how classification and regression overfitting are introduced, then consolidate their presentation under a clear overfitting concept; done when the chapter structure no longer introduces classification overfitting under a separate name.

Written by the indexing model from the issue text.