Fix CI badge link in README.md

Author: timholy

README.md

@@ -1,6 +1,6 @@
 <div align="center"> <img src="images/revise-wordmark.svg" alt="Revise.jl"></img></div>
 
-[![Build Status](https://github.com/timholy/Revise.jl/workflows/CI/badge.svg)](https://github.com/timholy/Revise.jl/actions?query=workflow%3A%22CI%22+branch%3Amaster)
+[![CI](https://github.com/timholy/Revise.jl/actions/workflows/ci.yml/badge.svg)](https://github.com/timholy/Revise.jl/actions/workflows/ci.yml)
 [![codecov.io](http://codecov.io/github/timholy/Revise.jl/coverage.svg?branch=master)](http://codecov.io/github/timholy/Revise.jl?branch=master)
 
 `Revise.jl` allows you to modify code and use the changes without restarting Julia.