Create copilot-instructions.md

[redsun82]

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[Copilot]

Pull Request Overview

This PR introduces a new file containing instructions for code reviews by Copilot.

• Added guidelines for excluding files with the .expected extension.
• Provided specific instructions on reviewing .ql and .qll files.

Comments suppressed due to low confidence (2)

.github/copilot-instructions.md:2

• [nitpick] Consider rephrasing 'automatically ensured to be correct' to a clearer term such as 'automatically validated' to enhance the clarity of this instruction.

* do not review changes in files with `.expected` extension (they are automatically ensured to be correct).

.github/copilot-instructions.md:4

• [nitpick] To maintain a consistent bullet format, consider combining lines 3 and 4 into a single bullet point or adjust the indentation to make it clear that line 4 is a continuation of the earlier instruction.

  well enough to make comments in these languages. You can still check for typos or comment improvements.