[distributed] point to fsdp2 and remove fsdp1 in distributed overview #4913

Job	Run time
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	14m 25s
pytorch_tutorial_build_worker (9, 15, linux.g5.4xlarge.nvidia.gpu)	15m 24s
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	15m 1s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	14m 34s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	15m 33s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	15m 28s
pytorch_tutorial_build_worker (10, 15, linux.g5.4xlarge.nvidia.gpu)	14m 42s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	15m 10s
pytorch_tutorial_build_worker (13, 15, linux.g5.4xlarge.nvidia.gpu)	15m 19s
pytorch_tutorial_build_worker (8, 15, linux.g5.4xlarge.nvidia.gpu)	14m 42s
pytorch_tutorial_build_worker (14, 15, linux.g5.4xlarge.nvidia.gpu)	15m 7s
pytorch_tutorial_build_worker (12, 15, linux.g5.4xlarge.nvidia.gpu)	13m 50s
pytorch_tutorial_build_worker (7, 15, linux.g5.4xlarge.nvidia.gpu)	14m 20s
pytorch_tutorial_build_worker (15, 15, linux.g5.4xlarge.nvidia.gpu)	15m 8s
pytorch_tutorial_build_worker (11, 15, linux.g5.4xlarge.nvidia.gpu)	13m 48s
pytorch_tutorial_build_manager	1s
	3h 42m 32s

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