Gtm create rps

@jsteiner @gabebw
I think the following is formatted a little better:

```ruby
RULES = {
  "r" => {"r" => "tie", "p" => "p", "s" => "r"},
  "p" => {"r" => "p", "p" => "tie", "s" => "s"},
  "s" => {"r" => "r", "p" => "s", "s" => "tie"},
}
```