Adding swift-t.ipynb

[j-woz]

Placeholder for tutorial content

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[mtitov]

@j-woz do we need a separate folder for it? (kinda if it is just a notebook, then it is ok to keep it in a tutorials root directory SDK/docs/source/tutorials/?)

btw, keep in sync the path with its reference here SDK/docs/source/tutorials.rst

[j-woz]

There will be helper scripts outside the PYNB so the directory will help keep things organized.

[mtitov]

There will be helper scripts outside the PYNB so the directory will help keep things organized.

makes sense, thanks!