message: Update examples/README.md with note about regenerating compat examples
diff: @@ -4,3 +4,5 @@ To quickly set up CodeSandbox using any of these examples as a template:
  2. Change the domain of the URL from `github.com` to `githubbox.com` (just add "box" after "github") and press Enter/Return.
  Your browser will be forwarded to [codesandbox.io](https://codesandbox.io) with the example project preloaded.
  +
  +To update and regenerate the examples for the compatibility packages, modify the [template folder](./template/), then run `yarn generate-compat-examples` from the [repo root directory](../).
  