The surface code is mentioned [here](https://developer.nvidia.com/blog/real-time-decoding-algorithmic-gpu-decoders-and-ai-inference-enhancements-in-nvidia-cuda-q-qec/#sliding_window_decoding), but not in the docs [here](https://nvidia.github.io/cudaqx/components/qec/introduction.html#pre-built-qec-codes).