Add a deprecation notice to the Profile Tensorboard tutorial #3304

Job	Run time
pytorch_tutorial_build_worker (1, 15, linux.g5.12xlarge.nvidia.gpu)	3m 32s
pytorch_tutorial_build_worker (2, 15, linux.g5.4xlarge.nvidia.gpu)	1m 29s
pytorch_tutorial_build_worker (3, 15, linux.g5.4xlarge.nvidia.gpu)	1m 22s
pytorch_tutorial_build_worker (4, 15, linux.g5.4xlarge.nvidia.gpu)	1m 24s
pytorch_tutorial_build_worker (5, 15, linux.g5.4xlarge.nvidia.gpu)	1m 27s
pytorch_tutorial_build_worker (6, 15, linux.g5.4xlarge.nvidia.gpu)	1m 19s
pytorch_tutorial_build_worker (7, 15, linux.4xlarge.nvidia.gpu)	3m 32s
pytorch_tutorial_build_worker (8, 15, linux.4xlarge.nvidia.gpu)	3m 31s
pytorch_tutorial_build_worker (9, 15, linux.4xlarge.nvidia.gpu)	3m 32s
pytorch_tutorial_build_worker (10, 15, linux.4xlarge.nvidia.gpu)	3m 33s
pytorch_tutorial_build_worker (11, 15, linux.4xlarge.nvidia.gpu)	3m 34s
pytorch_tutorial_build_worker (12, 15, linux.4xlarge.nvidia.gpu)	3m 32s
pytorch_tutorial_build_worker (13, 15, linux.4xlarge.nvidia.gpu)	3m 31s
pytorch_tutorial_build_worker (14, 15, linux.4xlarge.nvidia.gpu)	3m 33s
pytorch_tutorial_build_worker (15, 15, linux.4xlarge.nvidia.gpu)	3m 33s
pytorch_tutorial_build_manager	1s
	42m 25s

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