update Readme.md

Author: rmllr

README.md

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 [![Evaluation Server](https://img.shields.io/badge/docker-evaluationserver-blue.svg)](https://hub.docker.com/r/getaviz/ui)
 # Getaviz
 
-With Getaviz you can solve software engineering problems visually by exploring software artifacts in 2D, 3D, and virtual reality. Among other things it provides proper visualizations for identifying and refactoring antipattern, locating runtime bottlenecks, assessing software quality, and tracking changes above multiple versions. To get a first impression, have a look at [our showcases](http://home.uni-leipzig.de/svis/Showcases/) that are available online. You can adopt the visualizations as well as the user interface according to your needs. Getaviz visualizes the structure and behavior of several programming languages (*Java*, *Ruby*, *PHP*, and *C#*) and can enrich these visualizations with evolutional information from *git* and *svn* repositories. They can be explored via *browser*, *HTC Vive*, or *Oculus Rift*. We support many different visualizations, e.g., Recursive Disk ([2D](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/RD%20freemind&model=RD%20freemind) and [3D](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/RD%20reek&model=RD%203D%20reek)), [City](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/City%20freemind&model=City%20original%20freemind), [City Floors](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/City%20freemind&model=City%20floor%20freemind), [City Bricks](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/City%20freemind&model=City%20bricks%20freemind), and many more.
+With Getaviz you can solve software engineering problems visually by exploring software artifacts in 2D, 3D, and virtual reality. Among other things it provides proper visualizations for identifying and refactoring antipatterns, locating runtime bottlenecks, assessing software quality, and tracking changes across multiple versions. To get a first impression, have a look at [our showcases](http://home.uni-leipzig.de/svis/Showcases/) that are available online. You can adopt the visualizations as well as the user interface according to your needs. Getaviz visualizes the structure and behavior of several programming languages (*Java*, *Ruby*, *PHP*, and *C#*) and can enrich these visualizations with evolutional information from *git* and *svn* repositories. They can be explored via *browser*, *HTC Vive*, or *Oculus Rift*. We support many different visualizations, e.g., Recursive Disk ([2D](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/RD%20freemind&model=RD%20freemind) and [3D](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/RD%20reek&model=RD%203D%20reek)), [City](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/City%20freemind&model=City%20original%20freemind), [City Floors](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/City%20freemind&model=City%20floor%20freemind), [City Bricks](https://home.uni-leipzig.de/svis/getaviz/index.php?setup=web/City%20freemind&model=City%20bricks%20freemind), and many more.
 
 ## How do I get set up? ###
 
@@ -20,7 +20,7 @@ Getaviz is mainly developed by the research group [Visual Software Analytics](ht
 * [Pascal Kovacs](https://github.com/PascalKovacs)
 * [David Baum](http://home.uni-leipzig.de/svis/Research%20Group/#DavidBaum)
 
-Many thanks to all the contributors who have improved Getaviz by implementing new features or fixing bugs, especially: Denise Zilch, André Naumann, [Stefan Faulhaber](https://github.com/StefanFaulhaber), [Dan Häberlein](https://github.com/dhaeb),  [Lisa Vogelsberg](https://github.com/Valekta/), [Aaron Sillus](https://github.com/AaronSil)
+Many thanks to all the contributors who have improved Getaviz by implementing new features or fixing bugs, especially: Denise Zilch, [André Naumann](https://github.com/sk2andy), [Stefan Faulhaber](https://github.com/StefanFaulhaber), [Dan Häberlein](https://github.com/dhaeb),  [Lisa Vogelsberg](https://github.com/Valekta/), [Aaron Sillus](https://github.com/AaronSil)
 
 ## Publications
 * David Baum, Jens Dietrich, Craig Anslow, Richard Müller: [Visualizing Design Erosion: How Big Balls of Mud are Made](https://arxiv.org/abs/1807.06136), IEEE VISSOFT, 2018.