message: Update chapter 3 code snippet to match the actual output of the code
diff: @@ -134,8 +134,7 @@ and observe our pattern in action:
  func @transpose_transpose(%arg0: tensor<*xf64>) -> tensor<*xf64>
  attributes {toy.generic} {
  %0 = "toy.transpose"(%arg0) : (tensor<*xf64>) -> tensor<*xf64>
  - %1 = "toy.transpose"(%0) : (tensor<*xf64>) -> tensor<*xf64>
  - "toy.return"(%1) : (tensor<*xf64>) -> ()
  + "toy.return"(%arg0) : (tensor<*xf64>) -> ()
  }
  ```
  