Add README.md

README.md

+Referencias:
+
+[1] Stover, Christopher and Weisstein, Eric W. "Site Percolation." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/SitePercolation.html
+[2] Daniel García Solla (2024). On the time complexity analysis of numerical percolation threshold estimation. arXiv. https://arxiv.org/abs/2410.11874
+[3] Daniel García Solla (2024). 2D site-percolation threshold. Kaggle. https://doi.org/10.34740/KAGGLE/DSV/9800784
+[4] https://observablehq.com/@d3/histogram/2
+[5] https://observablehq.com/@d3/kernel-density-estimation
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