Caffe2 Mobile Exporter link broken

[alejo9719]

The link for the Caffe2 mobile exporter in the section "Running the model on mobile devices" of https://pytorch.org/tutorials/advanced/super_resolution_with_caffe2.html is outdated. I think the correct link is https://github.com/pytorch/pytorch/blob/master/caffe2/python/predictor/mobile_exporter.py.

[jspisak]

This was fixed in the above commits. Closing the issue..