Update the README badge to show the GHA build status

pimterry · pimterry · commit 426be143ec96 · 2021-11-23T18:41:41.000+01:00
Travis build hasn't been in use for a long time now, not sure
how this got left over when we switched.
diff --git a/README.md b/README.md
@@ -1,4 +1,4 @@
-HTTP Toolkit Server [![Travis Build Status](https://img.shields.io/travis/httptoolkit/httptoolkit-server.svg)](https://travis-ci.org/httptoolkit/httptoolkit-server) [![Version](https://img.shields.io/npm/v/httptoolkit-server.svg)](https://npmjs.org/package/httptoolkit-server)
+HTTP Toolkit Server [![Build Status](https://github.com/httptoolkit/httptoolkit-server/workflows/CI/badge.svg)](https://github.com/httptoolkit/httptoolkit-server/actions) [![Version](https://img.shields.io/npm/v/httptoolkit-server.svg)](https://npmjs.org/package/httptoolkit-server)
 ===================
 
 This repo contains the backend for [HTTP Toolkit](https://httptoolkit.tech), a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client.

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-HTTP Toolkit Server [![Travis Build Status](https://img.shields.io/travis/httptoolkit/httptoolkit-server.svg)](https://travis-ci.org/httptoolkit/httptoolkit-server) [![Version](https://img.shields.io/npm/v/httptoolkit-server.svg)](https://npmjs.org/package/httptoolkit-server)`
	`1`	`+HTTP Toolkit Server [![Build Status](https://github.com/httptoolkit/httptoolkit-server/workflows/CI/badge.svg)](https://github.com/httptoolkit/httptoolkit-server/actions) [![Version](https://img.shields.io/npm/v/httptoolkit-server.svg)](https://npmjs.org/package/httptoolkit-server)`
`2`	`2`	`===================`
`3`	`3`
`4`	`4`	`This repo contains the backend for [HTTP Toolkit](https://httptoolkit.tech), a beautiful, cross-platform & open-source HTTP(S) debugging proxy, analyzer & client.`