Correct the spelling of CocoaPods in README

Author: ReadmeCritic

README.md

@@ -17,7 +17,7 @@ This version has been upgraded to support iOS 9 only using Swift 2.
 
 There is two major version for the app released before.
 
-* V1.0 - Support iOS 7+ using CocoaPods and AFNetworking. [README.v1.md](https://github.com/JakeLin/SwiftWeather/blob/master/README.v1.md) and [Release V1 - Using Cocoapods and AFNetworking](https://github.com/JakeLin/SwiftWeather/releases/tag/V1)
+* V1.0 - Support iOS 7+ using CocoaPods and AFNetworking. [README.v1.md](https://github.com/JakeLin/SwiftWeather/blob/master/README.v1.md) and [Release V1 - Using CocoaPods and AFNetworking](https://github.com/JakeLin/SwiftWeather/releases/tag/V1)
 * V2.0 - Support iOS 8+ using Carthage, Alamofire, and SwiftyJSON. [README.v2.md](https://github.com/JakeLin/SwiftWeather/blob/master/README.v2.md) and [Release V2.0](https://github.com/JakeLin/SwiftWeather/releases/tag/v2.0)
 * V2.1 -  Support iOS 8+ using Alamofire and SwiftyJSON. This version has removed Carthage because some developers don't have a paid Apple iOS developer account, and they have issues to build Carthage packages.