Per [comments on issue 19 in patternfly-react-demo-app](https://github.com/patternfly/patternfly-react-demo-app/issues/19#issuecomment-364618983), since `yarn` is being used in products, consider migrating repos from `npm` to `yarn`.
Per comments on issue 19 in patternfly-react-demo-app, since
yarnis being used in products, consider migrating repos fromnpmtoyarn.