add nvshmem4py notebook #214

Job	Run time
discover-tutorials	4s
build-and-push (tutorials/cuda-cpp)	3m 45s
build-and-push (tutorials/nvmath-python)	4m 18s
build-and-push (tutorials/accelerated-python)	8m 27s
build-and-push (tutorials/stdpar)	9m 47s
	26m 21s

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