command palette로 사용할 수 있도록 기능 추가

What's Changed

• fix: add "Add Book Info" to command palette by @byounghoonkim in https://github.com/kmsk99/kr-book-info-plugin/pull/11

New Contributors

• @byounghoonkim made their first contribution in https://github.com/kmsk99/kr-book-info-plugin/pull/11

Full Changelog: https://github.com/kmsk99/kr-book-info-plugin/compare/1.3.2…1.3.3