Add copilot-instructions.md

[chhwang]

No description provided.

[Copilot]

Copilot wasn't able to review any files in this pull request.

[Binyang2014]

Thanks for adding these instructions. Just want to make sure copilot will follow this instruction to review code, or we need specific command to trigger some actions

[chhwang]

Thanks for adding these instructions. Just want to make sure copilot will follow this instruction to review code, or we need specific command to trigger some actions

copilot-instructions.md will be applied to all Copilot requests from VSCode or github.com. The regarding documetation links:
VSCode: https://code.visualstudio.com/docs/copilot/customization/custom-instructions#_use-a-githubcopilotinstructionsmd-file
GitHub: https://docs.github.com/en/copilot/how-tos/configure-custom-instructions/add-repository-instructions#creating-custom-instructions

VSCode Chat explicitly mentions the applied instructions: