Fixed typo

Author: radarhere

CHANGELOG.md

@@ -213,7 +213,7 @@ Please note the following API/project changes have been made:
 	* Implemented by [Chris Gibbs](https://github.com/chrisgibbs) in [#2771](https://github.com/AFNetworking/AFNetworking/pull/2771).
 * **Support for App Extension Targets is now baked in using `NS_EXTENSION_UNAVAILABLE_IOS`.** You no longer need to define `AF_APP_EXTENSIONS` in order to include code in a extension target.
 	* Implemented by [bnickel](https://github.com/bnickel) in [#2737](https://github.com/AFNetworking/AFNetworking/pull/2737).
-* This release now supports watchOS 2.0, which relys on target conditionals that are only present in Xcode 7 and iOS 9/watchOS 2.0/OS X 10.10. If you install the library using CocoaPods, AFNetworking will define these target conditionals for on older platforms, allowing your code to complile. If you do not use Cocoapods, you will need to add the following code your to PCH file.
+* This release now supports watchOS 2.0, which relys on target conditionals that are only present in Xcode 7 and iOS 9/watchOS 2.0/OS X 10.10. If you install the library using CocoaPods, AFNetworking will define these target conditionals for on older platforms, allowing your code to compile. If you do not use Cocoapods, you will need to add the following code your to PCH file.
 
 ```
 #ifndef TARGET_OS_IOS