[iOS] Fix podspec

[Odronin]

Hello!
When connecting the library using cocoapods, a number of errors occur.
To solve them have to manually change the RNReactLogging.podspec, namely:
s.homepage = "" => s.homepage = "https://github.com/LeoLucaNexsoft/react-native-file-log#readme"
s.source_files = "RNReactLogging/**/*.{h,m}" => s.source_files ="*.{h,m}"

After making these changes, everything is installed and working normally.
Thank you.