message: Update use_from_pytorch.rst
diff: @@ -14,7 +14,7 @@ Start by loading ``trtorch`` into your application.
  import trtorch
  -Then given a TorchScript module, you can lower it to TensorRT using the ``torch._C._jit_to_tensorrt`` API.
  +Then given a TorchScript module, you can compile it with TensorRT using the ``torch._C._jit_to_backend("tensorrt", ...)`` API.
  .. code-block:: python
  @@ -52,7 +52,7 @@ at the documentation for the TRTorch ``TensorRTCompileSpec`` API.
  })
  }
  -Now to compile with TRTorch, provide the target module objects and the spec dictionary to ``torch._C._jit_to_tensorrt``
  +Now to compile with TRTorch, provide the target module objects and the spec dictionary to ``torch._C._jit_to_backend("tensorrt", ...)``
  .. code-block:: python
  