Fix Build Badge

Author: ekrich

README.md

@@ -12,7 +12,7 @@ paragraph wrapping). See the [documentation site](http://typelevel.org/paiges/)
 The name *Paiges* is a reference to the [Paige compositor](https://en.wikipedia.org/wiki/Paige_Compositor)
 and the fact that it helps you layout pages.
 
-[![Build Status](https://api.travis-ci.org/typelevel/paiges.svg)](https://travis-ci.org/typelevel/paiges)
+![CI](https://github.com/typelevel/paiges/actions/workflows/ci.yml/badge.svg)
 [![codecov.io](http://codecov.io/github/typelevel/paiges/coverage.svg?branch=master)](http://codecov.io/github/typelevel/paiges?branch=master)
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