Update README.md

Author: olekscode

README.md

@@ -28,7 +28,7 @@ We need a natural language processing (NLP) library entirely written in Pharo wi
 
 ## Data visualizations
 
-We need a simple and powerful data visualization (charting) library similar to [ggplot](https://ggplot2.tidyverse.org/) and based on [The Grammar of Graphics](https://www.amazon.com/Grammar-Graphics-Statistics-Computing/dp/0387245448/ref=as_li_ss_tl?ie=UTF8&qid=1477928463&sr=8-1&keywords=the+grammar+of+graphics&linkCode=sl1&tag=ggplot2-20&linkId=f0130e557161b83fbe97ba0e9175c431). Inspiration can also be taken from Python's [matplotlib](https://matplotlib.org/) and [seaborn](https://seaborn.pydata.org/) but they do not follow the Grammar (which is very preferable). The library must be entirely implemented in Pharo, elements of visualization must be objects that allow interaction and can be inspected. This can be done by using [Telescope's Geometry library](https://github.com/TelescopeSt/Geometry) as back-end. Existing libraries for data visualization in Pharo include [Roassal's charting functionalities](http://agilevisualization.com/AgileVisualization/Grapher/0203-Grapher.html) and [a bridge to Python's matplotlib](https://github.com/juliendelplanque/MatplotLibBridge), however none of them fully satisfies the conditions listed above.
+We need a simple and powerful data visualization (charting) library similar to [ggplot](https://ggplot2.tidyverse.org/) and based on [The Grammar of Graphics](https://www.amazon.com/Grammar-Graphics-Statistics-Computing/dp/0387245448/ref=as_li_ss_tl?ie=UTF8&qid=1477928463&sr=8-1&keywords=the+grammar+of+graphics&linkCode=sl1&tag=ggplot2-20&linkId=f0130e557161b83fbe97ba0e9175c431). Inspiration can also be taken from Python's [matplotlib](https://matplotlib.org/) and [seaborn](https://seaborn.pydata.org/) but they do not follow the Grammar (which is very preferable). The library must be entirely implemented in Pharo, elements of visualization must be objects that allow interaction and can be inspected. This can be done by using [Telescope's Geometry library](https://github.com/TelescopeSt/Geometry) as back-end. Existing libraries for data visualization in Pharo include [Roassal's charting functionalities](http://agilevisualization.com/AgileVisualization/Grapher/0203-Grapher.html) and [a bridge to Python's matplotlib](https://github.com/juliendelplanque/MatplotLibBridge), however none of them fully satisfy the conditions listed above.
 
 ## Keras-style API on top of TensorFlow