Add GraphicsJS (sorrycc#324)

* Add GraphicsJS

* Update README.md

Author: andreykh1985

README.md

@@ -272,6 +272,7 @@ A collection of awesome browser-side [JavaScript](https://developer.mozilla.org/
 * [c3](https://github.com/c3js/c3) - D3-based reusable chart library.
 * [BabylonJS](https://github.com/BabylonJS/Babylon.js) - A framework for building 3D games with HTML 5 and WebGL.
 * [recharts](https://github.com/recharts/recharts) - Redefined chart library built with React and D3
+* [GraphicsJS](https://www.graphicsjs.org) - A lightweight JavaScript graphics library with the intuitive API, based on SVG/VML technology.
 
 There're also some great commercial libraries, like [amchart](https://www.amcharts.com/), [anychart](http://www.anychart.com), [plotly](https://plot.ly/), and [highchart](http://www.highcharts.com/).