Revamp TorchRec intro tutorial #3009

Job	Run time
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	15m 2s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	34m 53s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	19m 17s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	11m 48s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	22m 42s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	17m 35s
pytorch_tutorial_build_worker (7, 15, linux.4xlarge.nvidia.gpu)	20m 14s
pytorch_tutorial_build_worker (8, 15, linux.4xlarge.nvidia.gpu)	19m 29s
pytorch_tutorial_build_worker (9, 15, linux.4xlarge.nvidia.gpu)	22m 46s
pytorch_tutorial_build_worker (10, 15, linux.4xlarge.nvidia.gpu)	24m 10s
pytorch_tutorial_build_worker (11, 15, linux.4xlarge.nvidia.gpu)	28m 49s
pytorch_tutorial_build_worker (12, 15, linux.4xlarge.nvidia.gpu)	31m 47s
pytorch_tutorial_build_worker (13, 15, linux.4xlarge.nvidia.gpu)	21m 20s
pytorch_tutorial_build_worker (14, 15, linux.4xlarge.nvidia.gpu)	13m 27s
pytorch_tutorial_build_worker (15, 15, linux.4xlarge.nvidia.gpu)	20m 44s
pytorch_tutorial_build_manager	0s
	5h 24m 3s

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