Update readme

Author: krishnangovindraj

README.md

@@ -11,14 +11,17 @@ database.
 compiled from over a hundred different sources. The example showcases simple data preparation and a sample configuration
 file for loading a large taxonomic dataset using [TypeDB Loader.](https://github.com/typedb-osi/typedb-loader)
 
+## [Games: Sudoku](games/sudoku)
+
+The sudoku example demonstrates the ability of TypeDB's reasoner to solve a smaller 6x6 version of the classic puzzle.
+The sudoku is passed to the driver program in a text file and solved by querying a simple TypeDB database.
+
 ## [Games: XCOM Project](games/xcom)
 
 The XCOM 2 example contains a database of interdependent research tasks in the game XCOM 2, featuring automatic
 inference of available research based on completed tasks and available items. See [the schema](games/xcom/schema.tql)
 for the examples of reasoner rules inferring attributes.
 
-## [Games: XCOM Project](games/xcom)
-
 ## [Software: GitHub](software/github)
 
 The GitHub example showcases migration of heavily interconnected data from a live repository on GitHub or from a Vaticle