Fix `DistributedModelParallel` links in torchrec_intro_tutorial #4108

Job	Run time
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	15m 57s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	39m 41s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	23m 8s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	34m 30s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	24m 11s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	23m 3s
pytorch_tutorial_build_worker (7, 15, linux.4xlarge.nvidia.gpu)	23m 50s
pytorch_tutorial_build_worker (8, 15, linux.4xlarge.nvidia.gpu)	17m 27s
pytorch_tutorial_build_worker (9, 15, linux.4xlarge.nvidia.gpu)	22m 36s
pytorch_tutorial_build_worker (10, 15, linux.4xlarge.nvidia.gpu)	19m 45s
pytorch_tutorial_build_worker (11, 15, linux.4xlarge.nvidia.gpu)	18m 5s
pytorch_tutorial_build_worker (12, 15, linux.4xlarge.nvidia.gpu)	26m 28s
pytorch_tutorial_build_worker (13, 15, linux.4xlarge.nvidia.gpu)	29m 29s
pytorch_tutorial_build_worker (14, 15, linux.4xlarge.nvidia.gpu)	38m 57s
pytorch_tutorial_build_worker (15, 15, linux.4xlarge.nvidia.gpu)	1h 1m 12s
pytorch_tutorial_build_manager	23m 35s
	7h 21m 54s

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