v0.2.0: Fix skip? and should_copy? bugs (#5)

## Description

I tested this new features and found these two bugs. Luckily, we didn't push the gem to the `rubygems` yet!

## Checks

- [x] Add parenthesis to the negation statement on `should_copy?()` method.
- [x] Remove the unused parameter on `skip?()` method.

v0.1.2

Remove rescue