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readme.md

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 # C++ implementation of Voronoi diagram for points
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+ 
 Implementation of Fortune's sweep line algorithm :
 * S. Fortune, "A sweepline algorithm for Voronoi diagrams", Algorithmica, 1986
 
+I found also very useful and detailed description of the algorithm in this book:
+* M. Berg, O. Cheong, M. Kreveld and M. Overmars, "Computational geometry: Algorithms and Applications", Springer, 3rd edition, 2008
+
 ![Image of Voronoi diagram](./Images/voronoi-1.png) 
 
 <br/> 
@@ -11,7 +14,10 @@ Implementation of Fortune's sweep line algorithm :
 ### Main Features:
 * xCode project;
 * No dependencies on external libraries (except visualization);
-* Visualization using matplotlib for C++ (header only), however (I think) python is required!
+* For visualization I use external matplotlib wrapper for C++ (python is required). More info is [here](https://github.com/lava/matplotlib-cpp).
+
+## License
+This project is licensed under the MIT License - see the [license.md](license.md) file for details