Add badge

Author: ehmicky

README.md

@@ -2,6 +2,7 @@
 
 [![Codecov](https://img.shields.io/codecov/c/github/ehmicky/log-process-errors.svg?label=tested&logo=codecov)](https://codecov.io/gh/ehmicky/log-process-errors)
 [![Node](https://img.shields.io/node/v/log-process-errors.svg?logo=node.js)](https://www.npmjs.com/package/log-process-errors)
+[![TypeScript](https://img.shields.io/badge/-typed-brightgreen?logo=typescript&colorA=gray)](/src/main.d.ts)
 [![Twitter](https://img.shields.io/badge/%E2%80%8B-twitter-brightgreen.svg?logo=twitter)](https://twitter.com/intent/follow?screen_name=ehmicky)
 [![Medium](https://img.shields.io/badge/%E2%80%8B-medium-brightgreen.svg?logo=medium)](https://medium.com/@ehmicky)