add badge [skip ci]

Author: JaneJeon

README.md

@@ -1,6 +1,7 @@
 <h1 align="center">Welcome to got-ssrf 👋</h1>
 
 [![CircleCI](https://circleci.com/gh/hanover-computing/got-ssrf/tree/master.svg?style=shield)](https://circleci.com/gh/hanover-computing/got-ssrf/tree/master)
+[![GitHub Actions](https://github.com/hanover-computing/got-ssrf/actions/workflows/ci.yml/badge.svg)](https://github.com/hanover-computing/got-ssrf/actions/workflows/ci.yml)
 [![codecov](https://codecov.io/gh/hanover-computing/got-ssrf/branch/master/graph/badge.svg)](https://codecov.io/gh/hanover-computing/got-ssrf)
 [![Version](https://img.shields.io/npm/v/got-ssrf)](https://www.npmjs.com/package/got-ssrf)
 [![Downloads](https://img.shields.io/npm/dt/got-ssrf)](https://www.npmjs.com/package/got-ssrf)