Add Copilot instructions (#40432)
* Add copilot-instructions.md
* Fix typo
* Update .github/copilot-instructions.md
Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
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Co-authored-by: Arthur <48595927+ArthurZucker@users.noreply.github.com>
