Update README.md

Author: pusewicz

README.md

@@ -60,6 +60,10 @@ Bug reports and pull requests are welcome on GitHub at https://github.com/pusewi
 </table>
 <!-- readme: contributors -end -->
 
+## Others
+
+- [Wave Function Collapse in DragonRuby](https://github.com/pusewicz/wave-function-collapse-dragonruby)
+
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).