Replace dtype static list with a reference to data type doc

[hippocookie]

Fixes #2901

Description

in the pytorch dtype doc(link in below) is torch.bfloat16, but in tutorial istorch.bfloat , this might be mislead user to created dtype=torch.bfloat and get an error, might be better to make improvements:

• Using doc link replace with static dtype explanation

tutorial link: https://pytorch.org/tutorials/beginner/introyt/tensors_deeper_tutorial.html
doc link: https://pytorch.org/docs/stable/tensor_attributes.html#torch.dtype

tutorial is torch.bfloat

Got error when try to create

Should be dtype=torch.bfloat16

** Test Result: Local compile pages **

Checklist

• The issue that is being fixed is referred in the description (see above "Fixes #ISSUE_NUMBER")
• Only one issue is addressed in this pull request
• Labels from the issue that this PR is fixing are added to this pull request
• No unnecessary issues are included into this pull request.

cc @albanD @sekyondaMeta @svekars @kit1980 @brycebortree

[pytorch-bot]

🔗 Helpful Links

🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/tutorials/2937

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✅ No Failures

As of commit 08bd190 with merge base 91540a8 ():
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