Add demo link to Readme

Author: Constantiner

README.md

@@ -2,4 +2,6 @@
 
 This project is a recursive implementation of the Sierpiński triangle using React, Canvas, and TypeScript. The Sierpiński triangle is a fractal named after Polish mathematician Wacław Sierpiński. The triangle is formed by recursively dividing an equilateral triangle into smaller equilateral triangles and removing the central triangle. The resulting pattern is a beautiful and intricate fractal. In this project, we use React to render the Sierpiński triangle on a Canvas element and TypeScript for strict typing. The recursive implementation allows for the creation of Sierpiński triangles of varying sizes and levels of detail.
 
+Demo is available [here](https://constantiner.github.io/sierpinski-triangle-react/).
+
 Thanks [this article](https://medium.com/@pdx.lucasm/canvas-with-react-js-32e133c05258) for the inspiration.