Authored by Robert Reiz

Add References Badge to Readme

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[![Pod Platform](http://img.shields.io/cocoapods/p/SDWebImage.svg?style=flat)](http://cocoadocs.org/docsets/SDWebImage/)
[![Pod License](http://img.shields.io/cocoapods/l/SDWebImage.svg?style=flat)](https://www.apache.org/licenses/LICENSE-2.0.html)
[![Dependency Status](https://www.versioneye.com/objective-c/sdwebimage/3.3/badge.svg?style=flat)](https://www.versioneye.com/objective-c/sdwebimage/3.3)
[![Reference Status](https://www.versioneye.com/objective-c/sdwebimage/reference_badge.svg?style=flat)](https://www.versioneye.com/objective-c/sdwebimage/references)
This library provides a category for UIImageView with support for remote images coming from the web.
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