Update version to 1.1.3

Author: Luc Dion

FlexLayout.podspec

@@ -1,7 +1,7 @@
 
 Pod::Spec.new do |s|
   s.name         = "FlexLayout"
-  s.version      = "1.1.1"
+  s.version      = "1.1.3"
   s.summary      = "FlexLayout"
 
   s.homepage     = "https://github.com/lucdion/FlexLayout.git"

FlexLayout.xcodeproj/project.xcworkspace/xcuserdata/dionlu.xcuserdatad/UserInterfaceState.xcuserstate

@@ -1012,6 +1012,20 @@ To integrate FlexLayout into your Xcode project using CocoaPods, specify it in y
 
 Then, run `pod install`.
 
+
+### Carthage
+
+To integrate FlexLayout into your Xcode project using Carthage:
+
+1. Specify in your `Cartfile`:  
+```
+github "lucdion/FlexLayout"
+```
+
+2. Run `carthage update` to build frameworks.
+3. Add built `FlexLayout.framework` and `YogaKit.framework` frameworks in your Xcode project.
+4. Add the preprocessor macro `USE_YOGAKIT_PACKAGE` in your Xcode project. Target > Build Settings > Preprocessor Macros. add `USE_YOGAKIT_PACKAGE` in the **Debug** and the **Release** entry.
+
 <br/>
 
 ## Changelog