This reusable React component will manage all of your changes to the document head. Helmet takes plain HTML tags and outputs plain HTML tags. It's dead simple, and React beginner friendly. Helmet 5 is fully backward-compatible with previous Helmet releases, so you can upgrade at any time without fear of breaking changes. We encourage you to update your code to our more semantic API, but please feel free to do so at your own pace. If you are using a prebuilt compilation of your app with webpack...