Add question generator to example

[ismaelc]

closes #

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checklist:

• run make test and make lint
• add sample.json file
• test manually (i.e. build/push all images, restart operator, and re-deploy APIs)

[CLAassistant]

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2 out of 3 committers have signed the CLA.

✅ RobertLucian
✅ ismaelc
❌ Chris Ismael

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[RobertLucian]

Reference to this example as mentioned by @ismaelc : https://huggingface.co/mrm8488/t5-base-finetuned-question-generation-ap?text=My+name+is+Sarah+and+I+live+in+London

[deliahu]

@ismaelc looks and works great, thank you for adding this!