Starter commit
Add .rspec file
First commit
Fix syntax error in library_spec.rb

Removed extraneous `?` marks from `be_a` in the specs. If this was an intentional error, it was too subtle to be very effective and proved to be a large source of confusion.
First commit
Merge branch 'master' of https://github.com/lolptdr/library into library
corrected wrong 'borrowed_books' method
Merge branch 'master' of https://github.com/lolptdr/library