README.md in sewing_kit-0.29.1 vs README.md in sewing_kit-0.29.2

@@ -97,5 +97,14 @@
 * Use `sewing_kit_script_tag`/`sewing_kit_link_tag` helpers to link erb/js ([example](https://github.com/Shopify/rails_sewing_kit_example/blob/master/app/views/layouts/application.html.erb#L8))
 
 ## FAQ
 ### How can I fix production builds that are failing due to missing devDependencies?
 By moving everything into `package.json#dependencies`.  This is necessary because Rails 5.2 prunes `devDependencies` during asset compilation.
+
+### How can I test a production verison of my changes?
+Ideally, by deploying to a `staging` environment.  If that is not possible, a production-like local development experience is available via:
+```sh
+NODE_ENV=production bundle exec rake assets:precompile
+NODE_ENV=production SK_SIMULATE_PRODUCTION=1 dev run
+```
+
+Note that code changes will not be automatically recompiled in this state.  After verifying production behaviour, run `bundle exec rake assets:clobber` to get back to development mode.