Updated readme

Author: VilemKurz

README.md

@@ -1,13 +1,13 @@
 # UIViewController-DisplayInDrawer
 Present any view controller easily in a drawer (iOS Maps style).
 
-It is implemented as a UIViewController category, which means **no subclassing** and **no invasive view hierarchy setup**.
+It is implemented as a UIViewController extension, which means **no subclassing** and **no invasive view hierarchy setup**.
 It is designed to be as easy to use as possible:
 1. You can present any existing or new controller. Make it conform to the `DrawerConfiguration` protocol
 1. Optionally setup a `DrawerPositionDelegate` which is notified about drawer's position
 1. Call `displayInDrawer(controller, drawerPositionDelegate: delegate)`.
 
-Amongst other things we add blur behind your controller. If you want blur effect to be visible you need give your viewController's view transparent background.
+Amongst other things we add blur behind your controller. If you want blur effect to be visible you need give transparent background to your viewController's view.
 
 [![CI Status](https://img.shields.io/travis/vilemkurz/UIViewController-DisplayInDrawer.svg?style=flat)](https://travis-ci.org/vilemkurz/UIViewController-DisplayInDrawer)
 [![Version](https://img.shields.io/cocoapods/v/UIViewController-DisplayInDrawer.svg?style=flat)](https://cocoapods.org/pods/UIViewController-DisplayInDrawer)