Update and rename README.txt to README.md

Author: altin

README.md

@@ -0,0 +1,16 @@
+## About
+Rummikub is a tile-based game combining elements of the card game rummy and mahjong.
+
+## Running/Playing
+- Minimum Java 8 required.
+- Run from `Main.java`.
+
+## Rules
+https://www.rrrummy.com/en/tilerummy-rules.php
+
+## Note
+- The "Highlight Timer" setting is used to show an AI's highlighted tiles (Using the `*` or `!` notation) after they make a play. It lasts for the specified amount of time (3 seconds by default) and then the tiles lose their highlight.
+
+#### Other
+- School project for COMP 3004 (Software Engineering), Carleton University.
+- Design patterns/architectures used: Memento, Strategy, Observer, MVC.