Add podspec

README.md

 rnpm link
 ```
 
+Or if using CocoaPods, add the pod to your `Podfile`, for example:
+
+```
+pod 'react-native-fetch-blob,
+    :path => '../node_modules/react-native-fetch-blob
+```
+
 ### Manually link the package (Android)
 
 If rnpm link command failed to link the package automatically, you might try manually link the package.

react-native-fetch-blob.podspec

+Pod::Spec.new do |s|
+  s.name             = "react-native-fetch-blob"
+  s.version          = "0.9.3"
+  s.summary          = "A project committed to make file acess and data transfer easier, effiecient for React Native developers."
+  s.requires_arc = true
+  s.license      = 'MIT'
+  s.homepage     = 'n/a'
+  s.authors      = { "wkh237" => "xeiyan@gmail.com" }
+  s.source       = { :git => "https://github.com/wkh237/react-native-fetch-blob" }
+  s.source_files = 'src/ios/**/*.{h,m}'
+  s.platform     = :ios, "7.0"
+  s.dependency 'React/Core'
+end