Add ios-flexboxkit by @alexdrone

.. and Layout section

README.md

@@ -16,6 +16,7 @@ Projects in Swift language will be marked with :🔶: feel free to add your proj
      - [Images](#images)
      - [EventBus](#eventbus)
      - [JSON](#json)
+     - [Layout](#layout)
      - [Logging](#logging)
      - [Maps](#maps)
      - [Location](#location)
@@ -143,6 +144,9 @@ Projects in Swift language will be marked with :🔶: feel free to add your proj
  * [OCMapper](https://github.com/aryaxt/OCMapper) - Objective-C & Swift library to easily map NSDictionary to model objects. 🔶
  * [ObjectMapper](https://github.com/Hearst-DD/ObjectMapper) - A framework written in Swift that makes it easy for you to convert your Model objects (Classes and Structs) to and from JSON. 🔶
 
+### Layout
+* [ios-flexboxkit](https://github.com/alexdrone/ios-flexboxkit) - A simple UIKit extension to wrap Flexbox layouts.
+
 ### Logging
  * [CleanroomLogger](https://github.com/emaloney/CleanroomLogger) - A configurable and extensible Swift-based logging API that is simple, lightweight and performant. 🔶
  * [CocoaLumberjack](https://github.com/CocoaLumberjack/CocoaLumberjack) - A fast & simple, yet powerful & flexible logging framework for Mac and iOS.
@@ -274,7 +278,7 @@ Projects in Swift language will be marked with :🔶: feel free to add your proj
   * [SBConstants](https://github.com/paulsamuels/SBConstants) - Generate a constants file by grabbing identifiers from storyboards in a project.
   * [XExtensionItem](https://github.com/tumblr/XExtensionItem) - Easier sharing of structured data between iOS applications and share extensions.
   * [ReflectableEnum](https://github.com/fastred/ReflectableEnum) - Reflection for enumerations in Objective-C.
-
+    
 ### Security
  * [UICKeyChainStore](https://github.com/kishikawakatsumi/UICKeyChainStore) - UICKeyChainStore is a simple wrapper for Keychain on iOS.
  * [cocoapods-keys](https://github.com/orta/cocoapods-keys) - A key value store for storing environment and application keys.