Create a copilot-instructions.md in the template

When running "npx react-native init MyApp"

It would be nice to have a copilot-instructions.md like so?

# Copilot Instructions

This project was generated with [React Native](https://reactnative.dev).

To get the most out of GitHub Copilot (or other AI coding assistants) while working on this codebase:

## General Guidance
- **Keep prompts specific.** Mention whether you’re targeting iOS, Android, or both when asking for help.
- **Reference APIs.** Copilot responds better if you include the React Native API name (e.g. `FlatList`, `useColorScheme`, `StyleSheet`).
- **Ask iteratively.** Start with small, scoped requests (e.g. *“generate a button component with onPress logging”*), then refine.

## Common Use Cases
- **UI Components**  
  Ask Copilot to scaffold screens, navigation stacks, or UI elements.  
  Example: *“Generate a login screen using React Navigation with two TextInput fields and a button.”*

- **Platform-Specific Code**  
  Specify iOS or Android if you need native modules, permissions, or configuration.  
  Example: *“Show me how to request camera permission on Android using React Native.”*

- **Testing**  
  Copilot can generate Jest/React Native Testing Library test cases.  
  Example: *“Write a test for a Button component that ensures onPress is called.”*

## Best Practices
- **Review suggestions carefully.** Copilot may propose outdated APIs—always verify against the [React Native docs](https://reactnative.dev/docs).
- **Keep context short.** Too much boilerplate in your prompt may confuse the assistant.
- **Use version awareness.** If you upgrade React Native, check that Copilot suggestions match the new APIs.

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Happy coding with React Native 🚀

Inspect the files generated by npx react-native init MyApp and identify the template root. Add the requested copilot-instructions.md there using the supplied React Native guidance, then verify that a newly generated app includes the file.