Update README.md

Author: ctjoreilly

README.md

@@ -1,5 +1,5 @@
-# pseudocode
-Pseudocode descriptions of the algorithms from Russell And Norvig's "Artificial Intelligence - A Modern Approach"
+# Pseudocode
+Pseudocode descriptions of the algorithms from [Russell](http://www.cs.berkeley.edu/~russell/) and [Norvig's](http://www.norvig.com/) [Artificial Intelligence - A Modern Approach](http://aima.cs.berkeley.edu/).
 
 The file [aima3e-algorithms.pdf](https://github.com/aimacode/pseudocode/blob/master/aima3e-algorithms.pdf) contains all the algorithms from the third edition of the book. As we write the fourth edition, we will put the updated and new algorithms here: