Megha Anand

Add GitHub Copilot use case to serialize JSON

1

Incorporate GitHub Copilot for VS use case --- #### Internal previews | 📄 File | 🔗 Preview link | |:--|:--| | [docs/standard/serialization/system-text-json/how-to.md](https://github.com/dotnet/docs/blob/a0cdc3e15a3d54d96087f6a55ea02a7d6e7b6a30/docs/standard/serialization/system-text-json/how-to.md) | [docs/standard/serialization/system-text-json/how-to](https://review.learn.microsoft.com/en-us/dotnet/standard/serialization/system-text-json/how-to?branch=pr-en-us-42357) |