merged origin

Author: KelvinJin

README.md

@@ -3,6 +3,8 @@ A helper that simplifies handling dynamic content size category with only one li
 
 ### How to use
 
+Drag and drop the `DynamicFontSizeHelper.swift` file to your project.
+
 #### Interface Builder
 1. Select the `UILabel` that you want to support dynamic content size.
 2. Under **Attribute Inspector**, set the _Register For Size Change With Default Font Size_ to any `CGFloat` number you want.