Fix CI workflow badge

README.md

@@ -2,7 +2,7 @@
 <p align="center">An efficient min and max priority queue using a binary heap encoded in an array.</p>
 <p align="center">
    <a href="https://github.com/fgrosse/prioqueue/releases"><img src="https://img.shields.io/github/tag/fgrosse/prioqueue.svg?label=version&color=brightgreen"></a>
-   <a href="https://github.com/fgrosse/prioqueue/actions/workflows/test.yml"><img src="https://github.com/fgrosse/prioqueue/actions/workflows/test.yml/badge.svg"></a>
+   <a href="https://github.com/fgrosse/prioqueue/actions/workflows/ci.yml"><img src="https://github.com/fgrosse/prioqueue/actions/workflows/ci.yml/badge.svg"></a>
    <a href="https://goreportcard.com/report/github.com/fgrosse/prioqueue"><img src="https://goreportcard.com/badge/github.com/fgrosse/prioqueue"></a>
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     <a href="https://pkg.go.dev/github.com/fgrosse/prioqueue"><img src="https://img.shields.io/badge/godoc-reference-blue.svg?color=blue"></a>