Update README.md

README.md

@@ -114,6 +114,6 @@ info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this
 [forum-shield]: https://img.shields.io/badge/community-forum-brightgreen.svg?style=for-the-badge
 [forum]: https://community.home-assistant.io/c/projects/frontend
 [license-shield]: https://img.shields.io/github/license/custom-cards/boilerplate-card.svg?style=for-the-badge
-[maintenance-shield]: https://img.shields.io/maintenance/yes/2019.svg?style=for-the-badge
+[maintenance-shield]: https://img.shields.io/maintenance/yes/2020.svg?style=for-the-badge
 [releases-shield]: https://img.shields.io/github/release/custom-cards/boilerplate-card.svg?style=for-the-badge
 [releases]: https://github.com/custom-cards/boilerplate-card/releases