Add "Introduction to Algorithms" book

[ybrenning]

I would like to add the book "Introduction to Algorithms" by T. H. Cormen et al.

The only book listed here under the "Algorithms" category is currently Grokking Algorithms which is very beginner-friendly and has a lot of important algorithms and DS, but Introduction to Algorithms is another very well-known book on the topic which goes more in-depth than Grokking.

It expands on the topics in Grokking and also has important topics which aren't covered in Grokking such as Binary Search Trees, B-Trees, Red-Black Trees, Heaps, DFS, Kruskal, Floyd-Warshall, Ford-Fulkerson, Matrix operations and much more.

For these reasons, I think it would be useful to include this book as a resource on algorithms that everyone should know.