🤖 Merge PR DefinitelyTyped#74379 chore(vscode): add a readme to refer contribution back to vscode source repo by @hkleungai

Author: hkleungai

types/vscode/README.md

@@ -0,0 +1,7 @@
+# @types/vscode
+
+## Contributing
+
+`@types/vscode/index.d.ts` is an idential re-export of `src/vscode-dts/vscode.d.ts` in https://github.com/microsoft/vscode. See https://github.com/microsoft/vscode/tree/main/build/azure-pipelines/publish-types for how these types are updated.
+
+If you would like to contribute, please open an issue or a pull request there. Any code changes on `@types/vscode` without going through `microsoft/vscode` repo will risk being eliminated by microsoft's pipeline.