fix QAT training tutorial?

[truher]

https://github.com/tensorflow/models/blob/505f9bf352d35700bf2596f7d9ce908881f81a07/official/projects/qat/vision/README.md?plain=1#L111

Hi, I work with high school students who are struggling a bit with the tutorial material provided for QAT training. Would it be possible to provide examples that don't imply the use of cloud TPU (which is not allowed for the students)? There's also some confusion about the training data in this case, which doesn't seem to be referenced anywhere. thanks! @fyangf seems to have written this part.

[laxmareddyp]

Hi @truher,

Apologies for any inconvenience caused. We will investigate this matter and inform our engineering team. We'll update you once we have more information. Please be aware that our engineers are currently handling other high-priority assignments, so there might be some delay in their response.

Thanks.