Update README.md

Author: mdbrnowski

README.md

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 A direct method to generate Pythagorean triples, quadruples and n-tuples.
 
 ## Source
-This repository is a implementation of a great paper by Tanay Roy and Farjana Jaishmin Sonia from Jadavpur University, India. It is called "A Direct Method To Generate Pythagorean Triples And Its Generalization To Pythagorean Quadruples And n-tuples". I am very thankful to them. 🙏
+This repository is an implementation of a great paper by Tanay Roy and Farjana Jaishmin Sonia from Jadavpur University, India. It is called “_**A Direct Method To Generate Pythagorean Triples And Its Generalization To Pythagorean Quadruples And n-tuples**_”. I am very thankful to them.
 
-If you would like to read their paper, it is [here](https://arxiv.org/ftp/arxiv/papers/1201/1201.2145.pdf).
+If you would like (which I highly recommend) to read their paper, you can find it [here](https://arxiv.org/abs/1201.2145).