fix(iOS): Unable to find a specification for React-Core (#468)

Author: tido64

RNCAsyncStorage.podspec

@@ -12,8 +12,8 @@ Pod::Spec.new do |s|
   s.homepage     = package['homepage']
   s.platforms    = { :ios => "9.0", :tvos => "9.2", :osx => "10.14" }
 
-  s.source       = { :git => "https://github.com/react-native-community/react-native-async-storage.git", :tag => "v#{s.version}" }
+  s.source       = { :git => "https://github.com/react-native-async-storage/async-storage.git", :tag => "v#{s.version}" }
   s.source_files  = "ios/**/*.{h,m}"
 
-  s.dependency 'React-Core'
+  s.dependency 'React'
 end