Set authors
Set authors

When following the cocoapods installation route, an error occurs:
[!] The `react-native-NYTPhotoViewer` pod failed to validate due to 1 error:
    - ERROR | attributes: Missing required attribute `authors`.

Setting authors in podspec file fixes it.
sprightco/react-native-NYTPhotoViewer,sprightco/react-native-NYTPhotoViewer