diff --git a/README.md b/README.md
index cf2845a..fd10c62 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ Some are in Jupyter (IPython) notebooks, some in `.py` files. You can view the f
|[WWW: Will Warriors Win?](https://github.com/norvig/pytudes/blob/master/ipynb/WWW.ipynb)
*Golden State Warriors probability of winning the 2016 NBA title.*|
|[The Riddler: Battle Royale](https://github.com/norvig/pytudes/blob/master/ipynb/Riddler%20Battle%20Royale.ipynb)
*A puzzle involving allocating your troops and going up against an opponent.*|
-|More Serious Math Stuff|
+|Math Concepts|
|---|
|[A Concrete Introduction to Probability](https://github.com/norvig/pytudes/blob/master/ipynb/Probability.ipynb)
*Code and examples of the basic principles of Probability Theory.*|
|[Probability, Paradox, and the Reasonable Person Principle](https://github.com/norvig/pytudes/blob/master/ipynb/ProbabilityParadox.ipynb)
*Some classic paradoxes in Probability Theory, and how to think about disagreements.*|
@@ -51,6 +51,7 @@ Some are in Jupyter (IPython) notebooks, some in `.py` files. You can view the f
|[A Chaos Game with Triangles](https://github.com/norvig/pytudes/blob/master/ipynb/Sierpinski.ipynb)
*A surprising appearance of the Sierpinski triangle in a random walk between vertexes.*|
|[The Convex Hull Problem](https://github.com/norvig/pytudes/blob/master/ipynb/Convex%20Hull.ipynb)
*A classic Computer Science Algorithm.*|
|[The Traveling Salesperson Problem](https://github.com/norvig/pytudes/blob/master/ipynb/TSP.ipynb)
*Another of the classics.*|
+|[Generating Mazes](https://github.com/norvig/pytudes/blob/master/ipynb/Maze.ipynb)
*Make a maze by generating a random tree superimposed on a grid.*|
|[Project Euler Utilities](https://github.com/norvig/pytudes/blob/master/ipynb/Project%20Euler%20Utils.ipynb)
*My utility functions for the Project Euler problems, including `Primes` and `Factors`.*|
# Index of Python Files