formatting + fixed example

[Orkking2]

This is my very first pull request. I noticed that the example in /examples/counting_game.rs would panic when run so I added back the cycle behaviour overload for MyMCTS. I also have a linter that changed a bunch of formatting and I deleted the docs.rs comment in /src/lib.rs these changes are not ideal for the main fork but I'm not sure how to delete those from this pull request :(.