Revamp TorchRec intro tutorial #3035

Job	Run time
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	16m 40s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	52m 52s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	21m 0s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	29m 51s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	22m 32s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	19m 15s
pytorch_tutorial_build_worker (7, 15, linux.4xlarge.nvidia.gpu)	23m 55s
pytorch_tutorial_build_worker (8, 15, linux.4xlarge.nvidia.gpu)	23m 0s
pytorch_tutorial_build_worker (9, 15, linux.4xlarge.nvidia.gpu)	36m 1s
pytorch_tutorial_build_worker (10, 15, linux.4xlarge.nvidia.gpu)	27m 51s
pytorch_tutorial_build_worker (11, 15, linux.4xlarge.nvidia.gpu)	31m 48s
pytorch_tutorial_build_worker (12, 15, linux.4xlarge.nvidia.gpu)	29m 39s
pytorch_tutorial_build_worker (13, 15, linux.4xlarge.nvidia.gpu)	24m 2s
pytorch_tutorial_build_worker (14, 15, linux.4xlarge.nvidia.gpu)	17m 19s
pytorch_tutorial_build_worker (15, 15, linux.4xlarge.nvidia.gpu)	24m 9s
pytorch_tutorial_build_manager	21m 55s
	7h 1m 49s

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