docs(readme): add maintenance status

Author: jrolfs

README.md

@@ -10,6 +10,7 @@
 [![Build Status][build-badge]][build-link]
 [![Code Coverage][coverage-badge]][coverage-link]
 [![Version][package-badge]][package-link]
+[![Maintenance][maintenance-badge]][maintenance-link]
 [![MIT License][license-badge]][license-link]
 [![Code Style][prettier-badge]][prettier-link]
 [![Conventional Commits][conventional-commits-badge]][conventional-commits-link]
@@ -37,6 +38,7 @@
     - [Prettier](#prettier)
     - [Jest](#jest)
 - [License](#license)
+- [Maintenance](#maintenance)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
@@ -117,6 +119,11 @@ module.exports = {
 
 ## License
 
+## Maintenance
+
+This project is actively maintained by engineers at
+[@hoverinc][hover-github-link] 😀.
+
 MIT
 
 [hover-github-link]: https://github.com/hoverinc
@@ -131,13 +138,16 @@ MIT
 [conventional-commits-badge]:
   https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg
 [conventional-commits-link]: https://conventionalcommits.org
-[coverage-badge]:
-  https://img.shields.io/codecov/c/github/hoverinc/hover-javascript.svg
+
+[coverage-badge]: [maintenance-badge]:
+https://img.shields.io/badge/maintenance-active-247ddc?logo=data:image/png;base64,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
+[maintenance-link]: https://github.com/hoverinc/hover-javascript#maintenance
+https://img.shields.io/codecov/c/github/hoverinc/hover-javascript.svg
 [coverage-link]: https://codecov.io/github/hoverinc/hover-javascript
 [license-badge]: https://img.shields.io/npm/l/@hover/javascript.svg
 [license-link]: https://github.com/hoverinc/hover-javascript/blob/master/LICENSE
 [package-badge]: https://img.shields.io/npm/v/@hover/javascript.svg
 [package-link]: https://www.npmjs.com/package/@hover/javascript
 [prettier-badge]:
-  https://img.shields.io/badge/code_style-prettier-ff69b4.svg?logo=prettier
+https://img.shields.io/badge/code_style-prettier-ff69b4.svg?logo=prettier
 [prettier-link]: https://prettierjs.org/en/download/