Update README.md

Author: khatchad

README.md

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 [![Build Status](https://travis-ci.org/ponder-lab/Optimize-Java-8-Streams-Refactoring.svg?branch=master)](https://travis-ci.org/ponder-lab/Optimize-Java-8-Streams-Refactoring) [![Coverage Status](https://coveralls.io/repos/github/ponder-lab/Java-8-Stream-Refactoring/badge.svg?branch=master&t=mM9zgy)](https://coveralls.io/github/ponder-lab/Java-8-Stream-Refactoring?branch=master) [![GitHub license](https://img.shields.io/badge/license-Eclipse-blue.svg)](https://github.com/khatchadourian-lab/Java-8-Stream-Refactoring/raw/master/LICENSE.txt) [![DOI](https://zenodo.org/badge/78147265.svg)](https://zenodo.org/badge/latestdoi/78147265)
 
-## Screenshot
-![Screenshot](http://i2.wp.com/khatchad.commons.gc.cuny.edu/files/2018/03/Screenshot-from-2018-04-28-17-34-53.png)
-
 ## Introduction
 
 <img src="https://raw.githubusercontent.com/ponder-lab/Optimize-Java-8-Streams-Refactoring/master/edu.cuny.hunter.streamrefactoring.ui/icons/icon.png" alt="Icon" align="left" height=150px width=150px/> The Java 8 Stream API sets forth a promising new programming model that incorporates functional-like, MapReduce-style features into a mainstream programming language. However, using streams efficiently may involve subtle considerations. 
 
 This tool consists of automated refactoring research prototype plug-ins for [Eclipse][eclipse] that assists developers in writing optimal stream client code in a semantics-preserving fashion. Refactoring preconditions and transformations for automatically determining when it is safe and possibly advantageous to convert a sequential stream to parallel and improve upon already parallel streams are included. The approach utilizes both [WALA][wala] and [SAFE][safe].
 
+## Screenshot
+![Screenshot](http://i2.wp.com/khatchad.commons.gc.cuny.edu/files/2018/03/Screenshot-from-2018-04-28-17-34-53.png)
+
 ## Usage
 
 The refactoring can be run in two different ways: