🎉 Updates badges, addon is no longer experimental, but stable.

README.md

@@ -387,7 +387,7 @@ SOFTWARE.
 [npm-packages]: https://www.npmjs.com
 [patreon-shield]: https://www.frenck.nl/images/patreon.png
 [patreon]: https://www.patreon.com/frenck
-[project-stage-shield]: https://img.shields.io/badge/project%20stage-experimental-yellow.svg
+[project-stage-shield]: https://img.shields.io/badge/project%20stage-production%20ready-brightgreen.svg
 [reddit]: https://reddit.com/r/homeassistant
 [releases-shield]: https://img.shields.io/github/release/hassio-addons/addon-node-red.svg
 [releases]: https://github.com/hassio-addons/addon-node-red/releases