[Documentation] Link referenced in Phi-3.5 vision tutorial is dead

[mrtejas99]

Describe the documentation issue

The mentioned link https://github.com/microsoft/onnxruntime-genai/blob/main/examples/python/phi3v.py is dead as the file is missing in the repo

Page / URL

https://onnxruntime.ai/docs/genai/tutorials/phi3-v.html#run-on-cpu

[xadupre]

• @kunal-vaishnavi

[baijumeswani]

Sorry, this was my doing. As part of the gemma vision model support, I renamed phi3v.py to model-vision.py. Will update the docs.