Added Simon Singh's The Code Book (#98)

README.md

@@ -105,10 +105,10 @@ A curated list of cryptography resources and links.
 - [Real World Cryptography](https://www.manning.com/books/real-world-cryptography/) - This book teaches you applied cryptographic techniques to understand and apply security at every level of your systems and applications.
 - [Security Engineering](http://www.cl.cam.ac.uk/~rja14/book.html) - There is an extraordinary textbook written by Ross Anderson, professor of computer security at University of Cambridge.
 - [Serious Cryptography](https://nostarch.com/seriouscrypto) - A Practical Introduction to Modern Encryption by Jean-Philippe Aumasson.
+- [The Code Book](https://simonsingh.net/books/the-code-book/) - This book is a digest of the history of cryptography, covering both ancient times, and newer cryptography methods. There are exercises at the end and the solution of those was rewarded with $10.000.
 - [The Cryptoparty Handbook](https://unglue.it/work/141611/) - This book provides a comprehensive guide to the various topics of the computer and internet security.
 - [Understanding Cryptography](http://www.crypto-textbook.com/) - Often overlooked, this book is a boon for beginners to the field. It contains plenty of exercises at the end of each chapter, aimed at reinforcing concepts and cementing ideas.
 
-
 ### Courses
 
 - [A Self-Study Course In Block-Cipher Cryptanalysis](https://www.schneier.com/academic/paperfiles/paper-self-study.pdf) -This paper attempts to organize the existing literature of block-cipher cryptanalysis in a way that students can use to learn cryptanalytic techniques and ways to break algorithms, by Bruce Schneier.