ShiftViT Example Enhancements (#1011)

* Updated classification with GRN and VSN example with links to model and demo app on HuggingFace

* Removed warning messages, etc from md file

* md file fixes

* black formatting fix

* Updated ShiftViT example with model inference section and hugging face links

* formatting fixes

* black fix and minor edits

* removing generated file changes temporarily

* black formatting fix

* black formatting fix

* Added suggested fixes

* reduced code

* Added generated files