Even more section literally doubles chapters Summary

[ac2epsilon]

The former one removed/

Also added 5 misphrasings... too small fixes for their own PR:

• generic type parameter => type parameter (2x)
• "Hello?" => "Hi people" (Hello? What?)
• "Yo! I'm totally breathing" => "Meow. I am breathing too" (Totally breathing? What? And cats not saying Yo! Never.)
• "Nice way to group methods" => "usual way" "common way" "natural way" (Nice way to group methods? Good God!)
• As shown therein section of that book... => X (Thank you for the detailed coordinates, but...)

Also, 1 small, but more conceptual note:

• Some words have been added to the parameterless methods section. Namely, the true reason for the existence of such a double syntax is indicated. And it's not just finding out if there's a side effect. There are more valid reasons.

[bishabosha]

Hey please could you try to rebase this, since you opened the PR we added code tabs with syntax for both scala 2 and 3